diff --git a/.gitmodules b/.gitmodules
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+[submodule "vendor/jquery-references"]
+	path = vendor/jquery-references
+	url = https://github.com/davidstutz/jquery-references
diff --git a/LICENSE.md b/LICENSE.md
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--- /dev/null
+++ b/LICENSE.md
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+Copyright (C) 2017 David Stutz
+
+This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version.
+
+This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
+
+See [http://www.gnu.org/licenses/](http://www.gnu.org/licenses/).
\ No newline at end of file
diff --git a/README.md b/README.md
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+++ b/README.md
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+# Wordpress References
+
+Small and naive plugin to easily create labels and references as in LaTeX/BibTeX based on [davidstutz/jquery-references](https://github.com/davidstutz/jquery-references)
+
+## Installation
+
+In `wp-content/plugins`, create a new folder `wordpress-references` and put all files within this repository in this folder. In the backend, go to "Plugins" -> "Installed Plugins" and activate "Wordpress References".
+
+## Usage
+
+There are two forms of usage; the shorthand verison for placing a new label is
+
+    [lbl name scope]
+
+This will put a label at this place. Now using
+
+    [ref name scope]
+
+will place a reference to the label with the same name and in the same scope. Labels always start counting with 1; and counting is done separately for each scope. This means that
+
+    [lbl fig1 figures]
+    [ref fig1 figures]
+    [lbl ref1 references]
+    [ref ref1 references]
+
+will output four times `1`, as the two created labels live in separate scopes.
+
+The longer notation for both shortcodes are
+
+    [lbl name="fig1" scope="figures]
+    [ref name="fig1" scope="figures]
+
+The shorthand version and the explicit version should **not** be mixed, e.g. as follows:
+
+    [lbl name="fig1" figures] // will not work!
+    [lbl fig1 scope="figures"] // will not work!
+
+To directly place the labels in brackets:
+
+    [lblb ref1 references]
+    [refb ref1 references]
+
+## License
+
+Copyright (C) 2017 David Stutz
+
+This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version.
+
+This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
+
+See [http://www.gnu.org/licenses/](http://www.gnu.org/licenses/).
\ No newline at end of file
diff --git a/references.php b/references.php
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+++ b/references.php
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+<?php
+/**
+ * Plugin Name: Wordpress References
+ * Description: References plugin for Wordpress.
+ * Version: 0.9
+ * Author: David Stutz
+ * Author URI: http://davidstutz.de
+ * License: GPL 2
+ */
+/**
+ * Copyright (C) 2017  David Stutz
+ * 
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ * 
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ */
+
+/**
+ * Main class of the pluign.
+ */
+class References {
+
+    /**
+     * Indicates that JavaScript was not included yet.
+     */
+    private static $_included = FALSE;
+
+    /**
+     * Keepts track of the initialized scopes.
+     */
+    private static $_scopes = array();
+
+    /**
+     * Initialize all provided shortcodes.
+     */
+    public static function init() {        
+        add_shortcode('ref', array('References', 'ref'));
+        add_shortcode('lbl', array('References', 'lbl'));
+        add_shortcode('refb', array('References', 'refb'));
+        add_shortcode('lblb', array('References', 'lblb'));
+    }
+    
+    /**
+     * Add a reference to an existing label.
+     * 
+     * @param string $content
+     * @param array $attributes
+     * @return string
+     */
+    public static function ref($attributes, $content = null) {
+        extract(shortcode_atts(array(
+            'name' => '',
+            'scope' => '',
+            'style' => '###',
+        ), $attributes));
+        
+        if (References::$_included === FALSE) {
+            wp_enqueue_script('jquery-references', plugins_url('/vendor/jquery-references/dist/js/jquery-references.js', __FILE__));
+            wp_enqueue_script('jquery-references', plugins_url('/vendor/jquery-references/docs/js/jquery-3.1.1.min.js', __FILE__));
+            References::$_included = TRUE;
+        }
+        
+        if (isset($attributes[0])) {
+            $name = $attributes[0];
+        }
+        
+        if (isset($attributes[1])) {
+            $scope = $attributes[1];
+        }
+        else if (empty($scope)) {
+            $scope = 'default';
+        }
+
+        if (empty($style) OR FALSE == strpos($style, '###')) {
+            $style = '###';
+        }
+
+        if (!empty($name) AND !empty($scope)) {
+
+            $javascript = '';
+            if (!isset(References::$_scopes[$scope])) {
+                $javascript = '<script type="text/javascript">
+                                $(document).ready(function() {
+                                    $(\'.wordpress-references-' . $scope . '-lbl\').reference(\'label\', \'' . $scope . '\');
+                                    $(\'.wordpress-references-' . $scope . '-ref\').reference(\'reference\', \'' . $scope . '\');
+                                });
+                                </script>';
+                References::$_scopes[$scope] = TRUE;
+            }
+
+            return $javascript . str_replace('###', '<span class="wordpress-references-' . $scope . '-ref" id="' . $name . '"></span>', $style);
+        }
+    }
+
+    /**
+     * Add a label.
+     * 
+     * @param string $content
+     * @param array $attributes
+     * @return string
+     */
+    public static function lbl($attributes, $content = null) {
+        extract(shortcode_atts(array(
+            'name' => '',
+            'scope' => '',
+            'style' => '###',
+        ), $attributes));
+        
+        if (References::$_included === FALSE) {
+            wp_enqueue_script('jquery-references', plugins_url('/vendor/jquery-references/dist/js/jquery-references.js', __FILE__));
+            wp_enqueue_script('jquery-references', plugins_url('/vendor/jquery-references/docs/js/jquery-3.1.1.min.js', __FILE__));
+            References::$_included = TRUE;
+        }
+
+        if (isset($attributes[0])) {
+            $name = $attributes[0];
+        }
+        
+        if (isset($attributes[1])) {
+            $scope = $attributes[1];
+        }
+        else if (empty($scope)) {
+            $scope = 'default';
+        }
+
+        if (empty($style) OR FALSE == strpos($style, '###')) {
+            $style = '###';
+        }
+
+        if (!empty($name) AND !empty($scope)) {
+
+            $name = $name;
+            if (isset($attributes[1])) {
+                $name = $attributes[1];
+            }
+
+            $scope = $scope;
+            if (isset($attributes[0])) {
+                $name = $attributes[0];
+            }
+
+            $javascript = '';
+            if (!isset(References::$_scopes[$scope])) {
+                $javascript = '<script type="text/javascript">
+                                $(document).ready(function() {
+                                    $(\'.wordpress-references-' . $scope . '-lbl\').reference(\'label\', \'' . $scope . '\');
+                                    $(\'.wordpress-references-' . $scope . '-ref\').reference(\'reference\', \'' . $scope . '\');
+                                });
+                                </script>';
+                References::$_scopes[$scope] = TRUE;
+            }
+            
+            return $javascript . str_replace('###', '<span class="wordpress-references-' . $scope . '-lbl" id="' . $name . '"></span>', $style);
+        }
+    }
+
+    /**
+     * Add a reference to an existing label.
+     * 
+     * @param string $content
+     * @param array $attributes
+     * @return string
+     */
+    public static function refb($attributes, $content = null) {
+        $attributes['style'] = '[###]';
+        return References::ref($attributes, $content);
+    }
+
+    /**
+     * Add a label.
+     * 
+     * @param string $content
+     * @param array $attributes
+     * @return string
+     */
+    public static function lblb($attributes, $content = null) {
+        $attributes['style'] = '[###]';
+        return References::lbl($attributes, $content);
+    }
+}
+
+References::init();
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diff --git a/vendor/jquery-references b/vendor/jquery-references
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+Subproject commit 028c309c69918b4265f6e2f673057451375e6f73