diff --git a/src/app/core/component/cardrenderer/card-renderer.component.ts b/src/app/core/component/cardrenderer/card-renderer.component.ts
index bf27865a..df582f13 100644
--- a/src/app/core/component/cardrenderer/card-renderer.component.ts
+++ b/src/app/core/component/cardrenderer/card-renderer.component.ts
@@ -32,7 +32,7 @@ export class CardRendererComponent {
 
   navigate(pattern: UriEntity): void {
     this.zone.run(() => {
-      this.router.navigate([UriConverter.doubleEncodeUri(pattern.uri)], { relativeTo: this.activatedRoute });
+      this.router.navigate([pattern.id], { relativeTo: this.activatedRoute });
     });
   }
 
diff --git a/src/app/core/component/delete-confirmation-dialog/delete-confirmation-dialog.component.html b/src/app/core/component/delete-confirmation-dialog/delete-confirmation-dialog.component.html
index d6520076..05b27da8 100644
--- a/src/app/core/component/delete-confirmation-dialog/delete-confirmation-dialog.component.html
+++ b/src/app/core/component/delete-confirmation-dialog/delete-confirmation-dialog.component.html
@@ -1,8 +1,8 @@
 <h1 mat-dialog-title *ngIf="data?.name">Do you really want to delete {{data.name}}?</h1>
 <h1 mat-dialog-title *ngIf="!data?.name">Do you really want to delete this item?</h1>
 <div mat-dialog-actions>
-  <button mat-button (click)="onNoClick()">Cancle</button>
-  <button [mat-dialog-close]="data" class="pattern-button"  style="margin-left: auto;
+  <button mat-button (click)="onNoClick()">Cancel</button>
+  <button [mat-dialog-close]="data" class="pattern-button" style="margin-left: auto;
           margin-right: 0;" mat-raised-button color="warn">
     <i class="material-icons">delete</i>
   </button>
diff --git a/src/app/core/component/edit-url-dialog/edit-url-dialog.component.html b/src/app/core/component/edit-url-dialog/edit-url-dialog.component.html
index d9effe84..b48bf7f0 100644
--- a/src/app/core/component/edit-url-dialog/edit-url-dialog.component.html
+++ b/src/app/core/component/edit-url-dialog/edit-url-dialog.component.html
@@ -2,14 +2,14 @@ <h1 mat-dialog-title>Edit Title or Icon for {{data.pattern.name}}</h1>
 <div mat-dialog-content>
   <mat-form-field>
     <mat-label>Adjust Pattern Name</mat-label>
-    <input matInput placeholder={{data.pattern.name}} [(ngModel)]="data.name" >
+    <input matInput placeholder={{data.pattern.name}} [(ngModel)]="data.name">
   </mat-form-field>
   <mat-form-field>
     <mat-label>Adjust Icon URL</mat-label>
-    <input matInput placeholder={{data.pattern.iconUrl}} [(ngModel)]="data.icon" >
+    <input matInput placeholder={{data.pattern.iconUrl}} [(ngModel)]="data.icon">
   </mat-form-field>
 </div>
 <mat-dialog-actions align="end">
-  <button mat-button (click)="onNoClick()">Cancle</button>
+  <button mat-button (click)="onNoClick()">Cancel</button>
   <button mat-button [mat-dialog-close]="data" cdkFocusInitial>Ok</button>
 </mat-dialog-actions>
diff --git a/src/app/core/component/markdown-content-container/discuss-dialog/discuss-dialog.component.html b/src/app/core/component/markdown-content-container/discuss-dialog/discuss-dialog.component.html
index 7cf083ca..78dbce18 100644
--- a/src/app/core/component/markdown-content-container/discuss-dialog/discuss-dialog.component.html
+++ b/src/app/core/component/markdown-content-container/discuss-dialog/discuss-dialog.component.html
@@ -13,6 +13,6 @@ <h1 mat-dialog-title>{{data.title}}</h1>
 <mat-dialog-actions align="end">
   <button mat-button (click)="deleteComment()">Delete comment</button>
   <div fxFlex></div>
-  <button mat-button (click)="onNoClick()">Cancle</button>
+  <button mat-button (click)="onNoClick()">Cancel</button>
   <button mat-button [mat-dialog-close]="data" cdkFocusInitial>Ok</button>
 </mat-dialog-actions>
diff --git a/src/app/core/component/markdown-content-container/markdown-pattern-sectioncontent/markdown-pattern-section-content.component.ts b/src/app/core/component/markdown-content-container/markdown-pattern-sectioncontent/markdown-pattern-section-content.component.ts
index 70ed197a..13f0e0f8 100644
--- a/src/app/core/component/markdown-content-container/markdown-pattern-sectioncontent/markdown-pattern-section-content.component.ts
+++ b/src/app/core/component/markdown-content-container/markdown-pattern-sectioncontent/markdown-pattern-section-content.component.ts
@@ -26,6 +26,7 @@ import * as QuantumCircuit from 'quantum-circuit';
 export class MarkdownPatternSectionContentComponent extends DataRenderingComponent implements AfterViewInit {
   data: string;
   renderedData: string;
+  patternLanguageId: string;
   title = '';
   imageModels: ImageModel[] = [];
   svg: Selection<SVGSVGElement, any, any, any>;
@@ -107,7 +108,7 @@ export class MarkdownPatternSectionContentComponent extends DataRenderingCompone
 
   openEditor(): void {
     const dialogRef = this.dialog.open(MdEditorComponent,
-      { data: { content: this.data, field: this.title } });
+      { data: { content: this.data, field: this.title, patternLanguageId: this.patternLanguageId } });
     dialogRef.afterClosed().subscribe(async (result: DialogData) => {
       const previousValue = this.data;
 
diff --git a/src/app/core/component/md-editor/md-editor.component.html b/src/app/core/component/md-editor/md-editor.component.html
index 9c57844d..557a404c 100644
--- a/src/app/core/component/md-editor/md-editor.component.html
+++ b/src/app/core/component/md-editor/md-editor.component.html
@@ -4,8 +4,22 @@ <h1 mat-dialog-title>Edit '{{data.label}}'</h1>
     <i class="material-icons">close</i>
   </button>
 </div>
-<div mat-dialog-content>
-  <td-text-editor #mdEditor [value]="data.content"></td-text-editor>
+<div mat-dialog-content [formGroup]="selectedPatternForm">
+  <div style="display: flex;     align-items: center;">
+    <mat-form-field appearance="fill" style="flex: 0.625; margin-right: 0.3em">
+      <mat-label>Pattern</mat-label>
+      <mat-select formControlName="selectedPattern">
+        <mat-option *ngFor="let pattern of patterns" [value]="pattern">
+          {{pattern.name}}
+        </mat-option>
+      </mat-select>
+    </mat-form-field>
+    <button mat-raised-button color="primary" [disabled]="!selectedPatternForm.controls['selectedPattern'].value"
+            (click)="addReference()" matTooltip=" Add Reference to another Pattern">
+      Add Reference
+    </button>
+  </div>
+  <td-text-editor #mdEditor [value]="data.content" [options]="options"></td-text-editor>
 </div>
 <div mat-dialog-actions>
   <button mat-raised-button color="warn"
diff --git a/src/app/core/component/md-editor/md-editor.component.ts b/src/app/core/component/md-editor/md-editor.component.ts
index e95b355d..c9d5ff9f 100644
--- a/src/app/core/component/md-editor/md-editor.component.ts
+++ b/src/app/core/component/md-editor/md-editor.component.ts
@@ -1,11 +1,17 @@
-import { Component, Inject, ViewChild } from '@angular/core';
+import { Component, Inject, OnInit, ViewChild } from '@angular/core';
 import { MAT_DIALOG_DATA, MatDialogRef } from '@angular/material/dialog';
 import { TdTextEditorComponent } from '@covalent/text-editor';
+import { MarkdownEditorUtils } from '../../util/markdown-editor-utils';
+import Pattern from '../../model/hal/pattern.model';
+import { PatternService } from '../../service/pattern.service';
+import { FormBuilder, FormGroup } from '@angular/forms';
 
 export class DialogData {
-    field: string;
-    label?: string;
-    content: string;
+
+  field: string;
+  label?: string;
+  content: string;
+  patternLanguageId: string;
 }
 
 @Component({
@@ -13,39 +19,71 @@ export class DialogData {
   templateUrl: './md-editor.component.html',
   styleUrls: ['./md-editor.component.scss']
 })
-export class MdEditorComponent {
+export class MdEditorComponent implements OnInit {
 
-    @ViewChild('mdEditor') private _textEditor: TdTextEditorComponent;
-    private intialContent: string;
+  @ViewChild('mdEditor') private _textEditor: TdTextEditorComponent;
+  private intialContent: string;
+  patterns: Array<Pattern>;
+  selectedPatternForm: FormGroup;
 
-    constructor(public dialogRef: MatDialogRef<MdEditorComponent>,
-                @Inject(MAT_DIALOG_DATA) public data: DialogData) {
-      if (!data.label) {
-        data.label = data.field;
-      }
-      this.intialContent = data.content;
-      // We revert changes and close modal at click on backdrop
-      this.dialogRef.backdropClick().subscribe(() => {
-        this.dialogRef.close({ field: this.data.field, content: this.intialContent });
-      });
-      // We revert changes and close modal at hitting ESC
-      this.dialogRef.keydownEvents().subscribe(event => {
-        if (event.code === 'Escape') {
-          this.dialogRef.close({ field: this.data.field, content: this.intialContent });
-        }
-      });
+  constructor(public dialogRef: MatDialogRef<MdEditorComponent>,
+              @Inject(MAT_DIALOG_DATA) public data: DialogData, private patternService: PatternService,
+              private _fb: FormBuilder) {
+    if (!data.label) {
+      data.label = data.field;
     }
-
-    close(): void {
+    this.intialContent = data.content;
+    // We revert changes and close modal at click on backdrop
+    this.dialogRef.backdropClick().subscribe(() => {
       this.dialogRef.close({ field: this.data.field, content: this.intialContent });
-    }
+    });
+    // We revert changes and close modal at hitting ESC
+    this.dialogRef.keydownEvents().subscribe(event => {
+      if (event.code === 'Escape') {
+        this.dialogRef.close({ field: this.data.field, content: this.intialContent });
+      }
+    });
+  }
 
-    saveChanges(): void {
-      this.dialogRef.close({ field: this.data.field, content: this._textEditor.value });
-    }
+  options: any = {
+    autoDownloadFontAwesome: true,
+    toolbar:
+      [...MarkdownEditorUtils.standardMarkdownEditiorButtons,
+        {
+          name: 'latex-environment',
+          action: (editor) => {
+            MarkdownEditorUtils.insertTextAtCursor(editor, '$', '$');
+          },
+          className: 'fa fa-subscript',
+          title: 'Add Formula',
+        },
+        '|', // Separator
+        MarkdownEditorUtils.helpButton,
+        'preview'
+      ],
+  };
 
-    revert(): void {
-      this._textEditor.value = this.intialContent;
-    }
+  ngOnInit() {
+    this.patternService.getPatternsById(this.data.patternLanguageId).subscribe(res => this.patterns = res);
+    this.selectedPatternForm = this._fb.group({
+      selectedPattern: ['', []]
+    });
+  }
+
+  close(): void {
+    this.dialogRef.close({ field: this.data.field, content: this.intialContent });
+  }
+
+  saveChanges(): void {
+    this.dialogRef.close({ field: this.data.field, content: this._textEditor.value });
+  }
+
+  revert(): void {
+    this._textEditor.value = this.intialContent;
+  }
 
+  addReference() {
+    const pattern = this.selectedPatternForm.controls['selectedPattern'].value;
+    MarkdownEditorUtils.insertTextAtCursor(this._textEditor.simpleMDE, MarkdownEditorUtils.getPatternHrefMarkdown(this.data.patternLanguageId, pattern), '');
+  }
 }
diff --git a/src/app/core/component/select-pattern-dialog/select-pattern-dialog.component.html b/src/app/core/component/select-pattern-dialog/select-pattern-dialog.component.html
new file mode 100644
index 00000000..e6713f0e
--- /dev/null
+++ b/src/app/core/component/select-pattern-dialog/select-pattern-dialog.component.html
@@ -0,0 +1,16 @@
+<h1 mat-dialog-title>Which Pattern do you want to reference? </h1>
+<div mat-dialog-content [formGroup]="selectedPatternForm">
+  <mat-form-field appearance="fill">
+    <mat-label>Pattern</mat-label>
+    <mat-select formControlName="selectedPattern">
+      <mat-option *ngFor="let pattern of data.patterns" [value]="pattern">
+        {{pattern.name}}
+      </mat-option>
+    </mat-select>
+  </mat-form-field>
+</div>
+<mat-dialog-actions align="end">
+  <button mat-button (click)="onNoClick()">Cancel</button>
+  <button mat-button [mat-dialog-close]="selectedPatternForm.controls['selectedPattern'].value" cdkFocusInitial>Ok
+  </button>
+</mat-dialog-actions>
diff --git a/src/app/core/component/select-pattern-dialog/select-pattern-dialog.component.scss b/src/app/core/component/select-pattern-dialog/select-pattern-dialog.component.scss
new file mode 100644
index 00000000..e69de29b
diff --git a/src/app/core/component/select-pattern-dialog/select-pattern-dialog.component.ts b/src/app/core/component/select-pattern-dialog/select-pattern-dialog.component.ts
new file mode 100644
index 00000000..b616053f
--- /dev/null
+++ b/src/app/core/component/select-pattern-dialog/select-pattern-dialog.component.ts
@@ -0,0 +1,31 @@
+import { Component, Inject, OnInit } from '@angular/core';
+import { MAT_DIALOG_DATA, MatDialogRef } from '@angular/material/dialog';
+import { FormBuilder, FormGroup, Validators } from '@angular/forms';
+
+@Component({
+  selector: 'pp-select-pattern-dialog',
+  templateUrl: './select-pattern-dialog.component.html',
+  styleUrls: ['./select-pattern-dialog.component.scss']
+})
+export class SelectPatternDialogComponent implements OnInit {
+
+
+  constructor(
+    public dialogRef: MatDialogRef<SelectPatternDialogComponent>,
+    @Inject(MAT_DIALOG_DATA) public data: any, private _fb: FormBuilder) {
+  }
+
+  selectedPatternForm: FormGroup;
+
+  onNoClick(): void {
+    this.dialogRef.close();
+  }
+
+
+  ngOnInit(): void {
+    this.selectedPatternForm = this._fb.group({
+      selectedPattern: ['', [Validators.required]]
+    });
+  }
+
+}
diff --git a/src/app/core/core.module.ts b/src/app/core/core.module.ts
index 257bc6cc..ecaa9180 100644
--- a/src/app/core/core.module.ts
+++ b/src/app/core/core.module.ts
@@ -77,6 +77,7 @@ import { CandidateManagementService } from './candidate-management/_services/can
 import { CandidateManagementStore } from './candidate-management';
 import { MatTreeModule } from '@angular/material/tree';
 import { MatFormFieldModule } from '@angular/material/form-field';
+import { SelectPatternDialogComponent } from './component/select-pattern-dialog/select-pattern-dialog.component';
 import { DeleteConfirmationDialogComponent } from './component/delete-confirmation-dialog/delete-confirmation-dialog.component';
 import { EditUrlDialogComponent } from './component/edit-url-dialog/edit-url-dialog.component';
 import { FeatureToggleDialogComponent } from './component/feature-toggle-dialog/feature-toggle-dialog.component';
@@ -167,6 +168,7 @@ import { PatternAtlasUiFeatureToggleModule } from './directives/pattern-atlas-ui
     CreativeLicenseFooterComponent,
     CommentDialogComponent,
     DiscussDialogComponent,
+    SelectPatternDialogComponent,
     DeleteConfirmationDialogComponent,
     EditUrlDialogComponent,
     FeatureToggleDialogComponent
diff --git a/src/app/core/default-pattern-renderer/default-pattern-renderer.component.ts b/src/app/core/default-pattern-renderer/default-pattern-renderer.component.ts
index 376934ad..bafbe8e5 100644
--- a/src/app/core/default-pattern-renderer/default-pattern-renderer.component.ts
+++ b/src/app/core/default-pattern-renderer/default-pattern-renderer.component.ts
@@ -33,7 +33,7 @@ import { EditUrlDialogComponent } from '../component/edit-url-dialog/edit-url-di
 @Component({
   selector: 'pp-default-pattern-renderer',
   templateUrl: './default-pattern-renderer.component.html',
-  styleUrls: [ './default-pattern-renderer.component.scss' ]
+  styleUrls: ['./default-pattern-renderer.component.scss']
 })
 export class DefaultPatternRendererComponent implements AfterViewInit, OnDestroy {
   @ViewChild(PatternPropertyDirective) ppPatternProperty: PatternPropertyDirective;
@@ -105,7 +105,7 @@ export class DefaultPatternRendererComponent implements AfterViewInit, OnDestroy
   getPatternSectionContent(): Observable<Pattern> {
     const content = this.patternService.getPatternContentByPattern(this.pattern);
     const renderedContent = this.patternService.getPatternRenderedContentByPattern(this.pattern);
-    return forkJoin([ content, renderedContent ]).pipe(
+    return forkJoin([content, renderedContent]).pipe(
       map((patternContent) => {
         this.pattern.renderedContent = patternContent[1].renderedContent;
         return this.pattern.content = patternContent[0].content;
@@ -115,7 +115,7 @@ export class DefaultPatternRendererComponent implements AfterViewInit, OnDestroy
   getPatternLanguageLinks(): Observable<any> {
     const $getDirectedEdges = this.getDirectedEdges();
     const $getUndirectedEdges = this.getUndirectedEdges();
-    return forkJoin([ $getDirectedEdges, $getUndirectedEdges ]).pipe(tap(() => this.isLoadingLinks = false));
+    return forkJoin([$getDirectedEdges, $getUndirectedEdges]).pipe(tap(() => this.isLoadingLinks = false));
   }
 
   getPatternByLink(edge: DirectedEdgeModel | UndirectedEdgeModel, res: any) {
@@ -146,6 +146,7 @@ export class DefaultPatternRendererComponent implements AfterViewInit, OnDestroy
     instance.renderedData = renderedContent;
     instance.data = content;
     instance.title = section;
+    instance.patternLanguageId = this.patternLanguageId;
     instance.isEditingEnabled = this.isEditingEnabled;
     const changeSubscription = instance.changeContent.subscribe((dataChange: DataChange) => {
       this.pattern.content[section] = dataChange.currentValue;
@@ -162,8 +163,8 @@ export class DefaultPatternRendererComponent implements AfterViewInit, OnDestroy
     return this.patternLanguageService.getDirectedEdges(this.patternLanguage).pipe(
       tap((edges) => {
         this.directedPatternRelations = edges && edges._embedded ?
-          edges._embedded.directedEdgeModels.filter(edge => edge.sourcePatternId === this.pattern.id ||
-            edge.targetPatternId === this.pattern.id) : [];
+          edges._embedded.directedEdgeModels.filter(edge => edge.sourcePatternId === this.patternId ||
+            edge.targetPatternId === this.patternId) : [];
       }));
   }
 
@@ -174,7 +175,7 @@ export class DefaultPatternRendererComponent implements AfterViewInit, OnDestroy
     return this.patternLanguageService.getUndirectedEdges(this.patternLanguage).pipe(
       tap((edges) => {
         this.undirectedPatternRelations = edges && edges._embedded ?
-          edges._embedded.undirectedEdgeModels.filter(edge => edge.pattern1Id === this.pattern.id || edge.pattern2Id === this.pattern.id) : [];
+          edges._embedded.undirectedEdgeModels.filter(edge => edge.pattern1Id === this.patternId || edge.pattern2Id === this.patternId) : [];
       }));
   }
 
@@ -196,34 +197,21 @@ export class DefaultPatternRendererComponent implements AfterViewInit, OnDestroy
   }
 
   private getData(): void {
-    //initialize pattern to get ID etc for future requests
-    let getPatternObservable;
-    if (UriConverter.isUUID(this.patternId)) {
-      getPatternObservable = this.patternService.getPatternById(this.patternLanguage, this.patternId).pipe(
-        tap(pattern => this.pattern = pattern));
-    } else {
-      getPatternObservable = this.patternService.getPatternByEncodedUri(this.patternId).pipe(tap(pattern => this.pattern = pattern));
-    }
-    // get pattern language object with all the hal links that we need
-    let dataObservable;
-    if (UriConverter.isUUID(this.patternLanguageId)) {
-      dataObservable = this.patternLanguageService.getPatternLanguageByID(this.patternLanguageId).pipe(
-        tap((patternLanguage) => this.patternLanguage = patternLanguage),
-        // get our individual pattern and the links in parallel
-        switchMap(() => forkJoin([ this.fillPatternSectionData(), this.getPatternLanguageLinks() ])));
-    } else {
-      this.patternLanguageService.getPatternLanguageByEncodedUri(this.patternLanguageId).pipe(
-        tap((patternLanguage) => this.patternLanguage = patternLanguage),
-        // get our individual pattern and the links in parallel
-        switchMap(() => forkJoin([ this.fillPatternSectionData(), this.getPatternLanguageLinks() ])));
-    }
-    const dataSubscription = forkJoin([getPatternObservable, dataObservable]).subscribe(() => this.cdr.detectChanges());
-    this.subscriptions.add(dataSubscription);
 
+    // first load pattern language object with all the hal links / ids that we may need
+    let dataObservable = UriConverter.isUUID(this.patternLanguageId) ? this.patternLanguageService.getPatternLanguageByID(this.patternLanguageId)
+      : this.patternLanguageService.getPatternLanguageByEncodedUri(this.patternLanguageId);
+    let subscription = dataObservable.pipe(
+      tap((patternLanguage) => this.patternLanguage = patternLanguage),
+      // load the rest: get our individual pattern and the links in parallel
+      switchMap(() => forkJoin([this.getPatternObservable(), this.fillPatternSectionData(), this.getPatternLanguageLinks()])))
+      .subscribe(res => this.cdr.detectChanges());
+    this.subscriptions.add(subscription);
 
 
   }
 
+
   private fillPatternSectionData() {
     return this.getPatternData().pipe(
       tap(() => {
@@ -273,4 +261,11 @@ export class DefaultPatternRendererComponent implements AfterViewInit, OnDestroy
       }
     });
   }
+
+  private getPatternObservable(): Observable<Pattern> {
+    return UriConverter.isUUID(this.patternId) ?
+      this.patternService.getPatternById(this.patternLanguage, this.patternId) :
+      this.patternService.getPatternByEncodedUri(this.patternId).pipe(
+        tap(pattern => this.pattern = pattern));
+  }
 }
diff --git a/src/app/core/default-pl-renderer/default-pl-renderer.component.ts b/src/app/core/default-pl-renderer/default-pl-renderer.component.ts
index 76e15a9d..c1db85cb 100644
--- a/src/app/core/default-pl-renderer/default-pl-renderer.component.ts
+++ b/src/app/core/default-pl-renderer/default-pl-renderer.component.ts
@@ -288,7 +288,8 @@ export class DefaultPlRendererComponent implements OnInit, OnDestroy {
     }
 
     let loadDataObservable;
-    // check if patternlanguage is specified via UUIID or URI and load it accordingly
+    console.log(this.patternLanguageId)
+    // check if patternlanguage is specified via UUID or URI and load it accordingly
     if (UriConverter.isUUID(this.patternLanguageId)) {
       loadDataObservable = this.patternLanguageService.getPatternLanguageByID(this.patternLanguageId)
         .pipe(
diff --git a/src/app/core/service/pattern.service.ts b/src/app/core/service/pattern.service.ts
index 742af464..2f7e8ec5 100644
--- a/src/app/core/service/pattern.service.ts
+++ b/src/app/core/service/pattern.service.ts
@@ -71,6 +71,13 @@ export class PatternService {
     return this.http.get <Pattern>(this.repoEndpoint + '/patternLanguages/' + patternLanguage.id + '/patterns/' + patternId);
   }
 
+  getPatternsById(patternLanguageId: string): Observable<Array<Pattern>> {
+    return this.http.get <PatternResponse>(this.repoEndpoint + '/patternLanguages/' + patternLanguageId + '/patterns/').pipe(
+      map(result => {
+        return <Array<Pattern>>(result && result._embedded ? result._embedded.patternModels : [])
+      }));
+  }
+
   getPatternByUrl(href: string): Observable<PatternResponse> {
     return this.http.get<PatternResponse>(href);
   }
diff --git a/src/app/core/util/markdown-editor-utils.ts b/src/app/core/util/markdown-editor-utils.ts
new file mode 100644
index 00000000..34374429
--- /dev/null
+++ b/src/app/core/util/markdown-editor-utils.ts
@@ -0,0 +1,78 @@
+/*
+ * Copyright (c) 2018 University of Stuttgart.
+ *
+ * See the NOTICE file(s) distributed with this work for additional
+ * information regarding copyright ownership.
+ *
+ * This program and the accompanying materials are made available under the
+ * terms of the Eclipse Public License 2.0 which is available at
+ * http://www.eclipse.org/legal/epl-2.0, or the Apache Software License 2.0
+ * which is available at https://www.apache.org/licenses/LICENSE-2.0.
+ *
+ * SPDX-License-Identifier: EPL-2.0 OR Apache-2.0
+ */
+
+
+import Pattern from '../model/hal/pattern.model';
+
+export class MarkdownEditorUtils {
+
+  static standardMarkdownEditiorButtons = ['bold', 'italic', 'heading', '|', 'quote', 'unordered-list', 'ordered-list',
+    '|', // Separator
+    'link', 'image',
+    '|',  // Separator
+    'code']
+
+  static helpButton = {
+    name: 'guide',
+    action: 'https://pattern-atlas-readthedocs.readthedocs.io/en/latest/user_guide/patterns/#pattern-creation',
+    className: 'fa fa-question-circle',
+  };
+
+  // this method is based on the private function _replaceSelection(cm, active, startEnd, url)
+  // of simpleMDE (see simplemde.debug.js) which our markdowneditor is based on
+  static insertTextAtCursor(editor: any, textBeforeCursor, textAfterCursor): void {
+    var cm = editor.codemirror;
+    var stat = editor.getState(cm);
+    var options = editor.options;
+    var url = 'http://';
+    if (options.promptURLs) {
+      url = prompt(options.promptTexts.image);
+      if (!url) {
+        return;
+      }
+    }
+    var text;
+    var start = textBeforeCursor; // text to insert before cursor
+    var end = textAfterCursor; // text to insert after cursor
+    var startPoint = cm.getCursor('start');
+    var endPoint = cm.getCursor('end');
+    if (url) {
+      end = end.replace('#url#', url);
+    }
+    if (stat.link) {
+      text = cm.getLine(startPoint.line);
+      start = text.slice(0, startPoint.ch);
+      end = text.slice(startPoint.ch);
+      cm.replaceRange(start + end, {
+        line: startPoint.line,
+        ch: 0
+      });
+    } else {
+      text = cm.getSelection();
+      cm.replaceSelection(start + text + end);
+
+      startPoint.ch += start.length;
+      if (startPoint !== endPoint) {
+        endPoint.ch += start.length;
+      }
+    }
+    cm.setSelection(startPoint, endPoint);
+    cm.focus();
+  }
+
+  static getPatternHrefMarkdown(patternLanguageId: string, pattern: Pattern): string {
+    const patternReferenceUrl = `pattern-languages/${patternLanguageId}/${pattern.id}`;
+    return `[${pattern.name}](${patternReferenceUrl})`;
+  }
+}
diff --git a/src/app/core/util/uri-converter.ts b/src/app/core/util/uri-converter.ts
index 2927a7b1..aa44b020 100644
--- a/src/app/core/util/uri-converter.ts
+++ b/src/app/core/util/uri-converter.ts
@@ -52,7 +52,7 @@ export class UriConverter {
   }
 
   // this function checks if a given urlParam is a UUID (otherwise the entity is specified via its URI)
-  static isUUID(urlParam) {
+  static isUUID(urlParam): boolean {
     const s = '' + urlParam;
 
     const match = s.match('^[0-9a-fA-F]{8}-[0-9a-fA-F]{4}-[0-9a-fA-F]{4}-[0-9a-fA-F]{4}-[0-9a-fA-F]{12}$');
diff --git a/src/app/pattern-language-management/create-pattern/create-pattern.component.ts b/src/app/pattern-language-management/create-pattern/create-pattern.component.ts
index 8d06333e..a2d006d2 100644
--- a/src/app/pattern-language-management/create-pattern/create-pattern.component.ts
+++ b/src/app/pattern-language-management/create-pattern/create-pattern.component.ts
@@ -3,7 +3,6 @@ import { TdTextEditorComponent } from '@covalent/text-editor';
 import { ActivatedRoute, Router } from '@angular/router';
 import * as marked from 'marked';
 import { TokensList } from 'marked';
-import Pattern from '../../core/model/pattern.model';
 import { ToasterService } from 'angular2-toaster';
 import { AbstractControl, FormBuilder, FormControl, FormGroup, ValidationErrors, Validators } from '@angular/forms';
 import { ValidationService } from '../../core/service/validation.service';
@@ -13,9 +12,14 @@ import PatternSectionSchema from '../../core/model/hal/pattern-section-schema.mo
 import * as MarkdownIt from 'markdown-it';
 import * as markdownitKatex from 'markdown-it-katex';
 import { PatternService } from '../../core/service/pattern.service';
-import { debounceTime, distinctUntilChanged } from 'rxjs/internal/operators';
+import { debounceTime, distinctUntilChanged, tap } from 'rxjs/internal/operators';
 import { globals } from '../../globals';
 import { UriConverter } from '../../core/util/uri-converter';
+import { SelectPatternDialogComponent } from '../../core/component/select-pattern-dialog/select-pattern-dialog.component';
+import { MatDialog } from '@angular/material/dialog';
+import { of } from 'rxjs';
+import Pattern from '../../core/model/hal/pattern.model';
+import { MarkdownEditorUtils } from '../../core/util/markdown-editor-utils';
 
 @Component({
   selector: 'pp-create-pattern',
@@ -34,32 +38,24 @@ export class CreatePatternComponent implements OnInit {
   options: any = {
     autoDownloadFontAwesome: true,
     toolbar:
-      ['bold', 'italic', 'heading', '|', 'quote', 'unordered-list', 'ordered-list',
-        '|', // Separator
-        'link', 'image',
-        '|',  // Separator
-        'code',
+      [...MarkdownEditorUtils.standardMarkdownEditiorButtons,
         {
           name: 'alert',
           action: (editor) => {
-            this.insertTextAtCursor(editor, '$', '$');
+            MarkdownEditorUtils.insertTextAtCursor(editor, '$', '$');
           },
           className: 'fa fa-subscript',
           title: 'Add Formula',
         }, {
           name: 'pattern-link',
           action: (editor) => {
-          // TODO: after chosing a pattern in the dialog, insert a link to the chosen pattern in markdown syntax
+            this.addPatternReference(editor);
           },
           className: 'fa fab fa-product-hunt',
           title: 'Reference Pattern',
         },
         '|', // Separator
-        {
-          name: 'guide',
-          action: 'https://pattern-atlas-readthedocs.readthedocs.io/en/latest/user_guide/patterns/#pattern-creation',
-          className: 'fa fa-question-circle',
-        },
+        MarkdownEditorUtils.helpButton
       ],
   };
   errorMessages: Array<string>;
@@ -76,7 +72,8 @@ export class CreatePatternComponent implements OnInit {
               private patternService: PatternService,
               private router: Router,
               private zone: NgZone,
-              private _fb: FormBuilder) {
+              private _fb: FormBuilder,
+              private matDialog: MatDialog) {
   }
 
   get iconUrl(): AbstractControl {
@@ -97,7 +94,10 @@ export class CreatePatternComponent implements OnInit {
     this.markdown = new MarkdownIt();
     this.markdown.use(markdownitKatex);
 
-    this.patternLanguageService.getPatternLanguageById(this.patternLanguageId).subscribe((pl: PatternLanguage) => {
+    const patternLanguageObservable = UriConverter.isUUID(this.patternLanguageId) ?
+      this.patternLanguageService.getPatternLanguageById(this.patternLanguageId)
+      : this.patternLanguageService.getPatternLanguageByEncodedUri(this.patternLanguageId);
+    patternLanguageObservable.subscribe((pl) => {
       this.patternLanguage = pl;
       this.sections = this.patternLanguage.patternSchema ?
         this.patternLanguage.patternSchema.patternSectionSchemas.map((schema: PatternSectionSchema) => schema.label) : [];
@@ -186,7 +186,7 @@ export class CreatePatternComponent implements OnInit {
   }
 
   //Format Input text so MAP Patterns can be directly copied into Pattern Atlas
-  reformatMapPatternInput(text: string){
+  reformatMapPatternInput(text: string) {
     return text.replace(new RegExp('<!--.*-->', 'g'), ' ')
       .replace(new RegExp('\{#sec:.*}', 'g'), ' ')
       .replace(new RegExp('#{3,}', 'g'), '##');
@@ -225,10 +225,10 @@ export class CreatePatternComponent implements OnInit {
     }
     this.errorMessages = [];
     Object.keys(this.patternValuesFormGroup.controls).forEach(key => {
-      const controlErrors: ValidationErrors = this.patternValuesFormGroup.controls[ key ].errors;
+      const controlErrors: ValidationErrors = this.patternValuesFormGroup.controls[key].errors;
       if (controlErrors != null) {
         Object.keys(controlErrors).forEach(keyError => {
-          this.errorMessages.push(ValidationService.getMessageForError(key, keyError, controlErrors[ keyError ]));
+          this.errorMessages.push(ValidationService.getMessageForError(key, keyError, controlErrors[keyError]));
         });
       }
     });
@@ -259,7 +259,7 @@ export class CreatePatternComponent implements OnInit {
   private parsePatternInput(): void {
     const lines = this.parseMarkdownText();
     const patternNameIndex = lines.findIndex((it) => it.type === 'heading' && it.depth === 1);
-    this.patternName = patternNameIndex !== -1 ? lines[ patternNameIndex ][ 'text' ] : '';
+    this.patternName = patternNameIndex !== -1 ? lines[patternNameIndex]['text'] : '';
     this.patternLanguage.patternSchema.patternSectionSchemas.forEach((schema: PatternSectionSchema) => {
       const sectionName = schema.name;
       const sectionIndex = lines.findIndex((sec) => sec.type === 'heading' && sec.depth === 2 &&
@@ -267,21 +267,21 @@ export class CreatePatternComponent implements OnInit {
       if (sectionIndex !== -1) {
         const sectionContent = [];
         for (let i = sectionIndex + 1; i < lines.length; i++) {
-          if (lines[ i ].type === 'heading') {
+          if (lines[i].type === 'heading') {
             break;
           }
-          if (lines[ i ].type === 'space') {
+          if (lines[i].type === 'space') {
             sectionContent.push('\n');
           }
-          if (lines[ i ][ 'text' ]) {
+          if (lines[i]['text']) {
             // if a list item was parsed before, add it to the text
-            sectionContent.push(i > 0 && CreatePatternComponent.isListItem(i, sectionIndex, lines) ? '* ' + lines[ i ][ 'text' ] : lines[ i ][ 'text' ] );
+            sectionContent.push(i > 0 && CreatePatternComponent.isListItem(i, sectionIndex, lines) ? '* ' + lines[i]['text'] : lines[i]['text']);
           }
-          console.log('sectioncontent:'+sectionContent)
+          console.log('sectioncontent:' + sectionContent)
         }
         if (this.patternValuesFormGroup) {
-          if (this.patternValuesFormGroup.controls[ sectionName ]) {
-            this.patternValuesFormGroup.controls[ sectionName ].setValue(sectionContent.join('\n'));
+          if (this.patternValuesFormGroup.controls[sectionName]) {
+            this.patternValuesFormGroup.controls[sectionName].setValue(sectionContent.join('\n'));
           } else {
             console.log('missing formcontrol:');
             console.log(sectionName);
@@ -311,4 +311,34 @@ export class CreatePatternComponent implements OnInit {
     this._textEditor.value = this.previousTextEditorValue;
     this.onChangeMarkdownText();
   }
+
+  private addPatternReference(editor: any) {
+    // get patterns to select from
+    let patternsObservable = !this.patterns ?
+      this.patternService.getPatternsByUrl(this.patternLanguage._links.patterns.href) : of(this.patterns);
+    patternsObservable.pipe(
+      tap((res) => {
+        this.patterns = res;
+        // let the user choose which pattern to reference
+        this.showAndHandlePatternSelectionDialog(this.patterns, editor);
+      })).subscribe((res) => {
+      console.log('show dialog for pattern selection')
+    });
+  }
+
+  private showAndHandlePatternSelectionDialog(patterns: Array<Pattern>, editor: any) {
+    const dialogRef = this.matDialog.open(SelectPatternDialogComponent, {
+      data: {
+        patterns: this.patterns
+      }
+    });
+
+    dialogRef.afterClosed().subscribe((selectedPattern) => {
+      const patternReferenceUrl = `pattern-languages/${this.patternLanguage.id}/${selectedPattern.id}`;
+      if (selectedPattern) { // if user did not cancel
+        MarkdownEditorUtils.insertTextAtCursor(editor, `[${selectedPattern.name}](${patternReferenceUrl})`, '');
+        this.onChangeMarkdownText();
+      }
+    });
+  }
 }
diff --git a/src/app/pattern-view-management/pattern-view-renderer/pattern-view-renderer.component.ts b/src/app/pattern-view-management/pattern-view-renderer/pattern-view-renderer.component.ts
index 53aa6850..17613494 100644
--- a/src/app/pattern-view-management/pattern-view-renderer/pattern-view-renderer.component.ts
+++ b/src/app/pattern-view-management/pattern-view-renderer/pattern-view-renderer.component.ts
@@ -30,7 +30,7 @@ import { UiFeatures } from '../../core/directives/pattern-atlas-ui-repository-co
 @Component({
   selector: 'pp-pattern-view-renderer',
   templateUrl: './pattern-view-renderer.component.html',
-  styleUrls: ['./pattern-view-renderer.component.scss']
+  styleUrls: [ './pattern-view-renderer.component.scss' ]
 })
 export class PatternViewRendererComponent implements OnInit, AfterViewInit {
 
diff --git a/yarn.lock b/yarn.lock
index d35c9719..2f4c5ff8 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -2366,14 +2366,15 @@ browserify-zlib@^0.2.0:
     pako "~1.0.5"
 
 browserslist@^4.0.0, browserslist@^4.12.0, browserslist@^4.8.3, browserslist@^4.8.5, browserslist@^4.9.1:
-  version "4.12.0"
-  resolved "https://registry.yarnpkg.com/browserslist/-/browserslist-4.12.0.tgz#06c6d5715a1ede6c51fc39ff67fd647f740b656d"
-  integrity sha512-UH2GkcEDSI0k/lRkuDSzFl9ZZ87skSy9w2XAn1MsZnL+4c4rqbBd3e82UWHbYDpztABrPBhZsTEeuxVfHppqDg==
+  version "4.16.6"
+  resolved "https://registry.yarnpkg.com/browserslist/-/browserslist-4.16.6.tgz#d7901277a5a88e554ed305b183ec9b0c08f66fa2"
+  integrity sha512-Wspk/PqO+4W9qp5iUTJsa1B/QrYn1keNCcEP5OvP7WBwT4KaDly0uONYmC6Xa3Z5IqnUgS0KcgLYu1l74x0ZXQ==
   dependencies:
-    caniuse-lite "^1.0.30001043"
-    electron-to-chromium "^1.3.413"
-    node-releases "^1.1.53"
-    pkg-up "^2.0.0"
+    caniuse-lite "^1.0.30001219"
+    colorette "^1.2.2"
+    electron-to-chromium "^1.3.723"
+    escalade "^3.1.1"
+    node-releases "^1.1.71"
 
 browserstack@^1.5.1:
   version "1.6.0"
@@ -2585,10 +2586,10 @@ caniuse-api@^3.0.0:
     lodash.memoize "^4.1.2"
     lodash.uniq "^4.5.0"
 
-caniuse-lite@^1.0.0, caniuse-lite@^1.0.30001020, caniuse-lite@^1.0.30001032, caniuse-lite@^1.0.30001043, caniuse-lite@^1.0.30001061:
-  version "1.0.30001066"
-  resolved "https://registry.yarnpkg.com/caniuse-lite/-/caniuse-lite-1.0.30001066.tgz#0a8a58a10108f2b9bf38e7b65c237b12fd9c5f04"
-  integrity sha512-Gfj/WAastBtfxLws0RCh2sDbTK/8rJuSeZMecrSkNGYxPcv7EzblmDGfWQCFEQcSqYE2BRgQiJh8HOD07N5hIw==
+caniuse-lite@^1.0.0, caniuse-lite@^1.0.30001020, caniuse-lite@^1.0.30001032, caniuse-lite@^1.0.30001061, caniuse-lite@^1.0.30001219:
+  version "1.0.30001228"
+  resolved "https://registry.yarnpkg.com/caniuse-lite/-/caniuse-lite-1.0.30001228.tgz#bfdc5942cd3326fa51ee0b42fbef4da9d492a7fa"
+  integrity sha512-QQmLOGJ3DEgokHbMSA8cj2a+geXqmnpyOFT0lhQV6P3/YOJvGDEwoedcwxEQ30gJIwIIunHIicunJ2rzK5gB2A==
 
 canonical-path@1.0.0:
   version "1.0.0"
@@ -2903,6 +2904,11 @@ color@^3.0.0:
     color-convert "^1.9.1"
     color-string "^1.5.2"
 
+colorette@^1.2.2:
+  version "1.2.2"
+  resolved "https://registry.yarnpkg.com/colorette/-/colorette-1.2.2.tgz#cbcc79d5e99caea2dbf10eb3a26fd8b3e6acfa94"
+  integrity sha512-MKGMzyfeuutC/ZJ1cba9NqcNpfeqMUcYmyF1ZFY6/Cn7CNSAKx6a+s48sqLqyAiZuaP2TcqMhoo+dlwFnVxT9w==
+
 colors@1.1.2:
   version "1.1.2"
   resolved "https://registry.yarnpkg.com/colors/-/colors-1.1.2.tgz#168a4701756b6a7f51a12ce0c97bfa28c084ed63"
@@ -3966,10 +3972,10 @@ ee-first@1.1.1:
   resolved "https://registry.yarnpkg.com/ee-first/-/ee-first-1.1.1.tgz#590c61156b0ae2f4f0255732a158b266bc56b21d"
   integrity sha1-WQxhFWsK4vTwJVcyoViyZrxWsh0=
 
-electron-to-chromium@^1.3.413:
-  version "1.3.453"
-  resolved "https://registry.yarnpkg.com/electron-to-chromium/-/electron-to-chromium-1.3.453.tgz#758a8565a64b7889b27132a51d2abb8b135c9d01"
-  integrity sha512-IQbCfjJR0NDDn/+vojTlq7fPSREcALtF8M1n01gw7nQghCtfFYrJ2dfhsp8APr8bANoFC8vRTFVXMOGpT0eetw==
+electron-to-chromium@^1.3.723:
+  version "1.3.736"
+  resolved "https://registry.yarnpkg.com/electron-to-chromium/-/electron-to-chromium-1.3.736.tgz#f632d900a1f788dab22fec9c62ec5c9c8f0c4052"
+  integrity sha512-DY8dA7gR51MSo66DqitEQoUMQ0Z+A2DSXFi7tK304bdTVqczCAfUuyQw6Wdg8hIoo5zIxkU1L24RQtUce1Ioig==
 
 elliptic@^6.0.0, elliptic@^6.5.2:
   version "6.5.3"
@@ -4139,6 +4145,11 @@ es6-promisify@^5.0.0:
   dependencies:
     es6-promise "^4.0.3"
 
+escalade@^3.1.1:
+  version "3.1.1"
+  resolved "https://registry.yarnpkg.com/escalade/-/escalade-3.1.1.tgz#d8cfdc7000965c5a0174b4a82eaa5c0552742e40"
+  integrity sha512-k0er2gUkLf8O0zKJiAhmkTnJlTvINGv7ygDNPbeIsX/TJjGJZHuh9B2UxbsaEkmlEo9MfhrSzmhIlhRlI2GXnw==
+
 escape-html@~1.0.3:
   version "1.0.3"
   resolved "https://registry.yarnpkg.com/escape-html/-/escape-html-1.0.3.tgz#0258eae4d3d0c0974de1c169188ef0051d1d1988"
@@ -4568,13 +4579,6 @@ find-cache-dir@^2.0.0, find-cache-dir@^2.1.0:
     make-dir "^2.0.0"
     pkg-dir "^3.0.0"
 
-find-up@^2.1.0:
-  version "2.1.0"
-  resolved "https://registry.yarnpkg.com/find-up/-/find-up-2.1.0.tgz#45d1b7e506c717ddd482775a2b77920a3c0c57a7"
-  integrity sha1-RdG35QbHF93UgndaK3eSCjwMV6c=
-  dependencies:
-    locate-path "^2.0.0"
-
 find-up@^3.0.0:
   version "3.0.0"
   resolved "https://registry.yarnpkg.com/find-up/-/find-up-3.0.0.tgz#49169f1d7993430646da61ecc5ae355c21c97b73"
@@ -6255,14 +6259,6 @@ loader-utils@^1.0.2, loader-utils@^1.1.0, loader-utils@^1.2.3, loader-utils@^1.4
     emojis-list "^3.0.0"
     json5 "^1.0.1"
 
-locate-path@^2.0.0:
-  version "2.0.0"
-  resolved "https://registry.yarnpkg.com/locate-path/-/locate-path-2.0.0.tgz#2b568b265eec944c6d9c0de9c3dbbbca0354cd8e"
-  integrity sha1-K1aLJl7slExtnA3pw9u7ygNUzY4=
-  dependencies:
-    p-locate "^2.0.0"
-    path-exists "^3.0.0"
-
 locate-path@^3.0.0:
   version "3.0.0"
   resolved "https://registry.yarnpkg.com/locate-path/-/locate-path-3.0.0.tgz#dbec3b3ab759758071b58fe59fc41871af21400e"
@@ -6968,10 +6964,10 @@ node-libs-browser@^2.2.1:
     util "^0.11.0"
     vm-browserify "^1.0.1"
 
-node-releases@^1.1.53:
-  version "1.1.57"
-  resolved "https://registry.yarnpkg.com/node-releases/-/node-releases-1.1.57.tgz#f6754ce225fad0611e61228df3e09232e017ea19"
-  integrity sha512-ZQmnWS7adi61A9JsllJ2gdj2PauElcjnOwTp2O011iGzoakTxUsDGSe+6vD7wXbKdqhSFymC0OSx35aAMhrSdw==
+node-releases@^1.1.71:
+  version "1.1.72"
+  resolved "https://registry.yarnpkg.com/node-releases/-/node-releases-1.1.72.tgz#14802ab6b1039a79a0c7d662b610a5bbd76eacbe"
+  integrity sha512-LLUo+PpH3dU6XizX3iVoubUNheF/owjXCZZ5yACDxNnPtgFuludV1ZL3ayK1kVep42Rmm0+R9/Y60NQbZ2bifw==
 
 normalize-package-data@^2.0.0, normalize-package-data@^2.4.0, normalize-package-data@^2.5.0:
   version "2.5.0"
@@ -7345,13 +7341,6 @@ p-is-promise@^2.0.0:
   resolved "https://registry.yarnpkg.com/p-is-promise/-/p-is-promise-2.1.0.tgz#918cebaea248a62cf7ffab8e3bca8c5f882fc42e"
   integrity sha512-Y3W0wlRPK8ZMRbNq97l4M5otioeA5lm1z7bkNkxCka8HSPjR0xRWmpCmc9utiaLP9Jb1eD8BgeIxTW4AIF45Pg==
 
-p-limit@^1.1.0:
-  version "1.3.0"
-  resolved "https://registry.yarnpkg.com/p-limit/-/p-limit-1.3.0.tgz#b86bd5f0c25690911c7590fcbfc2010d54b3ccb8"
-  integrity sha512-vvcXsLAJ9Dr5rQOPk7toZQZJApBl2K4J6dANSsEuh6QI41JYcsS/qhTGa9ErIUUgK3WNQoJYvylxvjqmiqEA9Q==
-  dependencies:
-    p-try "^1.0.0"
-
 p-limit@^2.0.0, p-limit@^2.2.0, p-limit@^2.2.1, p-limit@^2.2.2:
   version "2.3.0"
   resolved "https://registry.yarnpkg.com/p-limit/-/p-limit-2.3.0.tgz#3dd33c647a214fdfffd835933eb086da0dc21db1"
@@ -7359,13 +7348,6 @@ p-limit@^2.0.0, p-limit@^2.2.0, p-limit@^2.2.1, p-limit@^2.2.2:
   dependencies:
     p-try "^2.0.0"
 
-p-locate@^2.0.0:
-  version "2.0.0"
-  resolved "https://registry.yarnpkg.com/p-locate/-/p-locate-2.0.0.tgz#20a0103b222a70c8fd39cc2e580680f3dde5ec43"
-  integrity sha1-IKAQOyIqcMj9OcwuWAaA893l7EM=
-  dependencies:
-    p-limit "^1.1.0"
-
 p-locate@^3.0.0:
   version "3.0.0"
   resolved "https://registry.yarnpkg.com/p-locate/-/p-locate-3.0.0.tgz#322d69a05c0264b25997d9f40cd8a891ab0064a4"
@@ -7399,11 +7381,6 @@ p-retry@^3.0.1:
   dependencies:
     retry "^0.12.0"
 
-p-try@^1.0.0:
-  version "1.0.0"
-  resolved "https://registry.yarnpkg.com/p-try/-/p-try-1.0.0.tgz#cbc79cdbaf8fd4228e13f621f2b1a237c1b207b3"
-  integrity sha1-y8ec26+P1CKOE/Yh8rGiN8GyB7M=
-
 p-try@^2.0.0:
   version "2.2.0"
   resolved "https://registry.yarnpkg.com/p-try/-/p-try-2.2.0.tgz#cb2868540e313d61de58fafbe35ce9004d5540e6"
@@ -7666,13 +7643,6 @@ pkg-dir@^4.1.0:
   dependencies:
     find-up "^4.0.0"
 
-pkg-up@^2.0.0:
-  version "2.0.0"
-  resolved "https://registry.yarnpkg.com/pkg-up/-/pkg-up-2.0.0.tgz#c819ac728059a461cab1c3889a2be3c49a004d7f"
-  integrity sha1-yBmscoBZpGHKscOImivjxJoATX8=
-  dependencies:
-    find-up "^2.1.0"
-
 portfinder@^1.0.26:
   version "1.0.26"
   resolved "https://registry.yarnpkg.com/portfinder/-/portfinder-1.0.26.tgz#475658d56ca30bed72ac7f1378ed350bd1b64e70"