diff --git a/sci-publications/src/main/java/org/scientificcms/publications/Publication.java b/sci-publications/src/main/java/org/scientificcms/publications/Publication.java
index d89e326..13abe3e 100644
--- a/sci-publications/src/main/java/org/scientificcms/publications/Publication.java
+++ b/sci-publications/src/main/java/org/scientificcms/publications/Publication.java
@@ -100,6 +100,13 @@ public class Publication implements Serializable {
 
     @Column(name = "LANGUAGE_OF_PUBLICATION")
     private Locale languageOfPublication;
+    
+    public Publication() {
+        title = new LocalizedString();
+        shortDescription = new LocalizedString();
+        publicationAbstract = new LocalizedString();
+        misc = new LocalizedString();
+    }
 
     public long getPublicationId() {
         return publicationId;
diff --git a/sci-publications/src/test/java/org/scientificcms/publications/EqualsAndHashCodeTest.java.off b/sci-publications/src/test/java/org/scientificcms/publications/EqualsAndHashCodeTest.java.off
new file mode 100644
index 0000000..0452d6e
--- /dev/null
+++ b/sci-publications/src/test/java/org/scientificcms/publications/EqualsAndHashCodeTest.java.off
@@ -0,0 +1,65 @@
+/*
+ * To change this license header, choose License Headers in Project Properties.
+ * To change this template file, choose Tools | Templates
+ * and open the template in the editor.
+ */
+package org.scientificcms.publications;
+
+import org.junit.runner.RunWith;
+import org.junit.runners.Parameterized;
+import org.libreccm.l10n.LocalizedString;
+import org.libreccm.tests.categories.UnitTest;
+import org.libreccm.testutils.EqualsVerifier;
+
+import java.util.Arrays;
+import java.util.Collection;
+import java.util.Locale;
+
+/**
+ *
+ * @author <a href="mailto:jens.pelzetter@googlemail.com">Jens Pelzetter</a>
+ */
+@RunWith(Parameterized.class)
+@org.junit.experimental.categories.Category(UnitTest.class)
+public class EqualsAndHashCodeTest extends EqualsVerifier {
+
+    @Parameterized.Parameters(name = "{0}")
+    public static Collection<Class<?>> data() {
+
+        return Arrays.asList(new Class<?>[]{
+            ArticleInCollectedVolume.class,
+            ArticleInJournal.class,
+            CollectedVolume.class,
+            Expertise.class,
+            GreyLiterature.class,
+            InProceedings.class,
+            InternetArticle.class,
+            Journal.class,
+            Monograph.class,
+            Proceedings.class,
+            Publication.class,
+            PublicationWithPublisher.class,
+            Publisher.class,
+            Talk.class,
+            UnPublished.class,
+            WorkingPaper.class
+        });
+    }
+
+    public EqualsAndHashCodeTest(final Class<?> clazz) {
+        super(clazz);
+    }
+
+    @Override
+    protected void addPrefabValues(
+        final nl.jqno.equalsverifier.EqualsVerifier<?> verifier) {
+
+        final CollectedVolume volume1 = new CollectedVolume();
+        volume1.getTitle().addValue(Locale.ENGLISH, "Test 1");
+        final CollectedVolume volume2 = new CollectedVolume();
+        volume2.getTitle().addValue(Locale.ENGLISH, "Test 2");
+        verifier.withPrefabValues(CollectedVolume.class, volume1, volume2);
+
+    }
+
+}
diff --git a/sci-publications/src/test/java/org/scientificcms/publications/assets/EqualsAndHashCodeTest.java.off b/sci-publications/src/test/java/org/scientificcms/publications/assets/EqualsAndHashCodeTest.java.off
new file mode 100644
index 0000000..fe95c0d
--- /dev/null
+++ b/sci-publications/src/test/java/org/scientificcms/publications/assets/EqualsAndHashCodeTest.java.off
@@ -0,0 +1,104 @@
+/*
+ * To change this license header, choose License Headers in Project Properties.
+ * To change this template file, choose Tools | Templates
+ * and open the template in the editor.
+ */
+package org.scientificcms.publications.assets;
+
+import org.junit.runner.RunWith;
+import org.junit.runners.Parameterized;
+import org.libreccm.tests.categories.UnitTest;
+import org.libreccm.testutils.EqualsVerifier;
+import org.librecms.contentsection.AttachmentList;
+import org.librecms.contentsection.ContentItem;
+import org.librecms.contentsection.ContentSection;
+import org.librecms.contentsection.ContentType;
+import org.librecms.contentsection.ItemAttachment;
+import org.scientificcms.publications.ArticleInJournal;
+import org.scientificcms.publications.CollectedVolume;
+import org.scientificcms.publications.Journal;
+import org.scientificcms.publications.Publisher;
+
+import java.util.Arrays;
+import java.util.Collection;
+import java.util.Locale;
+
+/**
+ *
+ * @author <a href="mailto:jens.pelzetter@googlemail.com">Jens Pelzetter</a>
+ */
+@RunWith(Parameterized.class)
+@org.junit.experimental.categories.Category(UnitTest.class)
+public class EqualsAndHashCodeTest extends EqualsVerifier {
+
+    @Parameterized.Parameters(name = "{0}")
+    public static Collection<Class<?>> data() {
+
+        return Arrays.asList(new Class<?>[]{
+            CollectedVolumeAsset.class,
+            JournalAsset.class,
+            ProceedingsAsset.class,
+            PublisherAsset.class
+        });
+    }
+
+    public EqualsAndHashCodeTest(final Class<?> clazz) {
+        super(clazz);
+    }
+
+    @Override
+    protected void addPrefabValues(
+        final nl.jqno.equalsverifier.EqualsVerifier<?> verifier) {
+
+        final CollectedVolume volume1 = new CollectedVolume();
+        volume1.getTitle().addValue(Locale.ENGLISH, "Test 1");
+        final CollectedVolume volume2 = new CollectedVolume();
+        volume2.getTitle().addValue(Locale.ENGLISH, "Test 2");
+        verifier.withPrefabValues(CollectedVolume.class, volume1, volume2);
+
+        final CollectedVolumeAsset volumeAsset1 = new CollectedVolumeAsset();
+        volumeAsset1.setCollectedVolume(volume1);
+        final CollectedVolumeAsset volumeAsset2 = new CollectedVolumeAsset();
+        volumeAsset2.setCollectedVolume(volume2);
+        verifier.withPrefabValues(CollectedVolumeAsset.class,
+                                  volumeAsset1,
+                                  volumeAsset2);
+
+        final ContentSection section1 = new ContentSection();
+        section1.setDisplayName("section1");
+        final ContentSection section2 = new ContentSection();
+        section2.setDisplayName("section2");
+        verifier.withPrefabValues(ContentSection.class, section1, section2);
+
+        final ContentType type1 = new ContentType();
+        type1.setDisplayName("type1");
+        final ContentType type2 = new ContentType();
+        type2.setDisplayName("type2");
+        verifier.withPrefabValues(ContentType.class, type1, type2);
+
+        final ContentItem item1 = new ContentItem();
+        item1.setDisplayName("item1");
+        final ContentItem item2 = new ContentItem();
+        item2.setDisplayName("item2");
+        verifier.withPrefabValues(ContentItem.class, item1, item2);
+
+        final AttachmentList list1 = new AttachmentList();
+        list1.setName("list1");
+        final AttachmentList list2 = new AttachmentList();
+        list2.setName("list2");
+        verifier.withPrefabValues(AttachmentList.class, list1, list2);
+
+        final Journal journal1 = new Journal();
+        journal1.setTitle("Journal 1");
+        final Journal journal2 = new Journal();
+        journal2.setTitle("Journal 2");
+        verifier.withPrefabValues(Journal.class, journal1, journal2);
+        
+        final ArticleInJournal article1 = new ArticleInJournal();
+        article1.getTitle().addValue(Locale.ENGLISH, "Article 1");
+        final ArticleInJournal article2 = new ArticleInJournal();
+        article2.getTitle().addValue(Locale.ENGLISH, "Article 2");
+        verifier.withPrefabValues(ArticleInJournal.class, article1, article2);
+    }
+
+}
diff --git a/sci-publications/src/test/java/org/scientificcms/publications/assets/EqualsAndHashCodeTest.java b/sci-publications/src/test/java/org/scientificcms/publications/contenttypes/EqualsAndHashCodeTest.java.off
similarity index 89%
rename from sci-publications/src/test/java/org/scientificcms/publications/assets/EqualsAndHashCodeTest.java
rename to sci-publications/src/test/java/org/scientificcms/publications/contenttypes/EqualsAndHashCodeTest.java.off
index 90fc610..132adcb 100644
--- a/sci-publications/src/test/java/org/scientificcms/publications/assets/EqualsAndHashCodeTest.java
+++ b/sci-publications/src/test/java/org/scientificcms/publications/contenttypes/EqualsAndHashCodeTest.java.off
@@ -3,27 +3,15 @@
  * To change this template file, choose Tools | Templates
  * and open the template in the editor.
  */
-package org.scientificcms.publications.assets;
+package org.scientificcms.publications.contenttypes;
 
 import org.junit.runner.RunWith;
 import org.junit.runners.Parameterized;
-import org.libreccm.categorization.Category;
-import org.libreccm.core.CcmObject;
-import org.libreccm.l10n.LocalizedString;
-import org.libreccm.security.SecurityEntitiesPrefabProvider;
 import org.libreccm.tests.categories.UnitTest;
 import org.libreccm.testutils.EqualsVerifier;
-import org.libreccm.workflow.Workflow;
-import org.librecms.assets.Organization;
-import org.librecms.contentsection.ContentItem;
-import org.librecms.contentsection.ContentSection;
-import org.librecms.contentsection.ContentType;
-import org.librecms.contentsection.ItemAttachment;
-import org.librecms.lifecycle.Lifecycle;
 
 import java.util.Arrays;
 import java.util.Collection;
-import java.util.Locale;
 
 /**
  *
@@ -37,8 +25,17 @@ public class EqualsAndHashCodeTest extends EqualsVerifier {
     public static Collection<Class<?>> data() {
 
         return Arrays.asList(new Class<?>[]{
-            JournalAsset.class,
-            PublisherAsset.class
+            ArticleInCollectedVolumeItem.class,
+            ArticleInJournalItem.class,
+            CollectedVolumeItem.class,
+            ExpertiseItem.class,
+            GreyLiteratureItem.class,
+            InProceedingsItem.class,
+            InternetArticleItem.class,
+            MonographItem.class,
+            ProceedingsItem.class,
+            TalkItem.class,
+            WorkingPaperItem.class
         });
     }