diff --git a/src/main/java/net/sf/jabref/bibtex/DuplicateCheck.java b/src/main/java/net/sf/jabref/bibtex/DuplicateCheck.java
index b5f18074ad9..18e708762d0 100644
--- a/src/main/java/net/sf/jabref/bibtex/DuplicateCheck.java
+++ b/src/main/java/net/sf/jabref/bibtex/DuplicateCheck.java
@@ -30,6 +30,8 @@
  */
 public class DuplicateCheck {
 
+    private static final Log LOGGER = LogFactory.getLog(DuplicateCheck.class);
+
     /*
      * Integer values for indicating result of duplicate check (for entries):
      *
@@ -50,8 +52,6 @@ public class DuplicateCheck {
     // Extra weighting of those fields that are most likely to provide correct duplicate detection:
     private static final HashMap<String, Double> fieldWeights = new HashMap<>();
 
-    private static final Log LOGGER = LogFactory.getLog(DuplicateCheck.class);
-
 
     static {
         DuplicateCheck.fieldWeights.put("author", 2.5);
diff --git a/src/test/java/net/sf/jabref/bibtex/DuplicateCheckTest.java b/src/test/java/net/sf/jabref/bibtex/DuplicateCheckTest.java
index d245874016a..b2cea13acaf 100644
--- a/src/test/java/net/sf/jabref/bibtex/DuplicateCheckTest.java
+++ b/src/test/java/net/sf/jabref/bibtex/DuplicateCheckTest.java
@@ -48,18 +48,36 @@ public void testDuplicateDetection() {
         one.setField("title", "A title");
         two.setField("title", "A title");
         one.setField("journal", "A");
+        two.setField("journal", "A");
+        Assert.assertTrue(DuplicateCheck.isDuplicate(one, two));
+        Assert.assertEquals(1.01, DuplicateCheck.compareEntriesStrictly(one, two), 0.01);
+
+        two.setField("journal", "B");
+        Assert.assertTrue(DuplicateCheck.isDuplicate(one, two));
+        Assert.assertEquals(0.75, DuplicateCheck.compareEntriesStrictly(one, two), 0.01);
+
         two.setField("journal", "A");
         one.setField("number", "1");
+        two.setField("volume", "21");
+        one.setField("pages", "334--337");
+        two.setField("pages", "334--337");
+        Assert.assertTrue(DuplicateCheck.isDuplicate(one, two));
+
         two.setField("number", "1");
         one.setField("volume", "21");
-        two.setField("volume", "21");
         Assert.assertTrue(DuplicateCheck.isDuplicate(one, two));
 
         two.setField("volume", "22");
         Assert.assertTrue(DuplicateCheck.isDuplicate(one, two));
 
-        two.setField("title", "Another title");
         two.setField("journal", "B");
+        Assert.assertTrue(DuplicateCheck.isDuplicate(one, two));
+
+        one.setField("journal", "");
+        two.setField("journal", "");
+        Assert.assertTrue(DuplicateCheck.isDuplicate(one, two));
+
+        two.setField("title", "Another title");
         Assert.assertFalse(DuplicateCheck.isDuplicate(one, two));
     }