diff --git a/sci-publications/src/main/java/org/scientificcms/publications/ArticleInCollectedVolumeImExporter.java b/sci-publications/src/main/java/org/scientificcms/publications/ArticleInCollectedVolumeImExporter.java
index ac10cae..8713983 100644
--- a/sci-publications/src/main/java/org/scientificcms/publications/ArticleInCollectedVolumeImExporter.java
+++ b/sci-publications/src/main/java/org/scientificcms/publications/ArticleInCollectedVolumeImExporter.java
@@ -13,8 +13,8 @@ import javax.enterprise.context.RequestScoped;
  */
 @RequestScoped
 @Processes(ArticleInCollectedVolume.class)
-public class ArticleInCollectedVolumeImExporter 
-extends AbstractPublicationImExporter<ArticleInCollectedVolume>{
+public class ArticleInCollectedVolumeImExporter
+    extends AbstractPublicationImExporter<ArticleInCollectedVolume> {
 
     @Override
     public Class<ArticleInCollectedVolume> getEntityClass() {
@@ -24,13 +24,7 @@ extends AbstractPublicationImExporter<ArticleInCollectedVolume>{
     @Override
     @PostConstruct
     protected void init() {
-        addRequiredEntities(
-            Set.of(
-                CollectedVolume.class
-            )
-        );
+        addRequiredEntities(Set.of(CollectedVolume.class));
     }
-    
-    
-    
+
 }
diff --git a/sci-publications/src/main/java/org/scientificcms/publications/ArticleInJournalImExporter.java b/sci-publications/src/main/java/org/scientificcms/publications/ArticleInJournalImExporter.java
index 85feed4..e7d80c3 100644
--- a/sci-publications/src/main/java/org/scientificcms/publications/ArticleInJournalImExporter.java
+++ b/sci-publications/src/main/java/org/scientificcms/publications/ArticleInJournalImExporter.java
@@ -24,11 +24,7 @@ public class ArticleInJournalImExporter
     @Override
     @PostConstruct
     protected void init() {
-        addRequiredEntities(
-            Set.of(
-            Journal.class
-        )
-        );
+        addRequiredEntities(Set.of(Journal.class));
     }
 
 }
diff --git a/sci-publications/src/main/java/org/scientificcms/publications/ExpertiseImExporter.java b/sci-publications/src/main/java/org/scientificcms/publications/ExpertiseImExporter.java
index b48c739..7310e2b 100644
--- a/sci-publications/src/main/java/org/scientificcms/publications/ExpertiseImExporter.java
+++ b/sci-publications/src/main/java/org/scientificcms/publications/ExpertiseImExporter.java
@@ -14,8 +14,8 @@ import javax.enterprise.context.RequestScoped;
  */
 @RequestScoped
 @Processes(Expertise.class)
-public class ExpertiseImExporter 
-    extends AbstractPublicationImExporter<Expertise>{
+public class ExpertiseImExporter
+    extends AbstractPublicationImExporter<Expertise> {
 
     @Override
     public Class<Expertise> getEntityClass() {
@@ -25,11 +25,7 @@ public class ExpertiseImExporter
     @Override
     @PostConstruct
     protected void init() {
-        addRequiredEntities(
-            Set.of(
-                Organization.class
-            )
-        );
+        addRequiredEntities(Set.of(Organization.class));
     }
-    
+
 }
diff --git a/sci-publications/src/main/java/org/scientificcms/publications/GreyLiteratureImExporter.java b/sci-publications/src/main/java/org/scientificcms/publications/GreyLiteratureImExporter.java
index a5fca4d..6a6a50a 100644
--- a/sci-publications/src/main/java/org/scientificcms/publications/GreyLiteratureImExporter.java
+++ b/sci-publications/src/main/java/org/scientificcms/publications/GreyLiteratureImExporter.java
@@ -1,6 +1,9 @@
 package org.scientificcms.publications;
 
 import org.libreccm.imexport.Processes;
+import org.librecms.assets.Organization;
+
+import java.util.Set;
 
 import javax.annotation.PostConstruct;
 import javax.enterprise.context.RequestScoped;
@@ -22,7 +25,7 @@ public class GreyLiteratureImExporter
     @Override
     @PostConstruct
     protected void initUnPublishedImExporter() {
-        // Nothing
+        addRequiredEntities(Set.of(Organization.class));
     }
 
 }
diff --git a/sci-publications/src/main/java/org/scientificcms/publications/InProceedingsImExporter.java b/sci-publications/src/main/java/org/scientificcms/publications/InProceedingsImExporter.java
index fbcbc26..9d244a1 100644
--- a/sci-publications/src/main/java/org/scientificcms/publications/InProceedingsImExporter.java
+++ b/sci-publications/src/main/java/org/scientificcms/publications/InProceedingsImExporter.java
@@ -24,11 +24,7 @@ public class InProceedingsImExporter
     @Override
     @PostConstruct
     protected void init() {
-        addRequiredEntities(
-            Set.of(
-                Proceedings.class
-            )
-        );
+        addRequiredEntities(Set.of(Proceedings.class));
     }
 
 }
diff --git a/sci-publications/src/main/java/org/scientificcms/publications/InternetArticleImExporter.java b/sci-publications/src/main/java/org/scientificcms/publications/InternetArticleImExporter.java
index 69a2bf2..cb6a537 100644
--- a/sci-publications/src/main/java/org/scientificcms/publications/InternetArticleImExporter.java
+++ b/sci-publications/src/main/java/org/scientificcms/publications/InternetArticleImExporter.java
@@ -25,11 +25,7 @@ public class InternetArticleImExporter
     @Override
     @PostConstruct
     protected void init() {
-        addRequiredEntities(
-            Set.of(
-                Organization.class
-            )
-        );
+        addRequiredEntities(Set.of(Organization.class));
     }
 
 }
diff --git a/sci-publications/src/main/java/org/scientificcms/publications/WorkingPaperImExporter.java b/sci-publications/src/main/java/org/scientificcms/publications/WorkingPaperImExporter.java
index efb405f..228ed86 100644
--- a/sci-publications/src/main/java/org/scientificcms/publications/WorkingPaperImExporter.java
+++ b/sci-publications/src/main/java/org/scientificcms/publications/WorkingPaperImExporter.java
@@ -1,6 +1,9 @@
 package org.scientificcms.publications;
 
 import org.libreccm.imexport.Processes;
+import org.librecms.assets.Organization;
+
+import java.util.Set;
 
 import javax.enterprise.context.RequestScoped;
 
@@ -10,19 +13,17 @@ import javax.enterprise.context.RequestScoped;
  */
 @RequestScoped
 @Processes(WorkingPaper.class)
-public class WorkingPaperImExporter 
-    extends AbstractUnPublishedImExporter<WorkingPaper>{
+public class WorkingPaperImExporter
+    extends AbstractUnPublishedImExporter<WorkingPaper> {
 
     @Override
     public Class<WorkingPaper> getEntityClass() {
- return WorkingPaper.class;
+        return WorkingPaper.class;
     }
 
     @Override
     protected void initUnPublishedImExporter() {
-        // Nothing
+        addRequiredEntities(Set.of(Organization.class));
     }
-    
-    
-    
+
 }
diff --git a/sci-publications/src/main/java/org/scientificcms/publications/assets/SeriesAssetImExporter.java b/sci-publications/src/main/java/org/scientificcms/publications/assets/SeriesAssetImExporter.java
index 6a2fe9c..4e5854f 100644
--- a/sci-publications/src/main/java/org/scientificcms/publications/assets/SeriesAssetImExporter.java
+++ b/sci-publications/src/main/java/org/scientificcms/publications/assets/SeriesAssetImExporter.java
@@ -3,8 +3,10 @@ package org.scientificcms.publications.assets;
 import org.libreccm.imexport.AbstractEntityImExporter;
 import org.libreccm.imexport.Processes;
 import org.librecms.contentsection.AssetRepository;
+import org.scientificcms.publications.Series;
 
 import java.util.Objects;
+import java.util.Set;
 
 import javax.annotation.PostConstruct;
 import javax.enterprise.context.RequestScoped;
@@ -26,7 +28,7 @@ extends AbstractEntityImExporter<SeriesAsset> {
     @PostConstruct
     @Override
     protected void init() {
-        // Nothing
+        addRequiredEntities(Set.of(Series.class));
     }
 
     @Override
diff --git a/sci-publications/src/main/java/org/scientificcms/publications/contenttypes/ArticleInCollectedVolumeItemImExporter.java b/sci-publications/src/main/java/org/scientificcms/publications/contenttypes/ArticleInCollectedVolumeItemImExporter.java
index 4420ecb..fa04263 100644
--- a/sci-publications/src/main/java/org/scientificcms/publications/contenttypes/ArticleInCollectedVolumeItemImExporter.java
+++ b/sci-publications/src/main/java/org/scientificcms/publications/contenttypes/ArticleInCollectedVolumeItemImExporter.java
@@ -2,6 +2,7 @@ package org.scientificcms.publications.contenttypes;
 
 import org.libreccm.imexport.Processes;
 import org.librecms.contentsection.AbstractContentItemImExporter;
+import org.scientificcms.publications.ArticleInCollectedVolume;
 
 import java.util.Set;
 
@@ -17,11 +18,7 @@ public class ArticleInCollectedVolumeItemImExporter extends AbstractContentItemI
 
     @Override
     protected void initContentItemImExporter() {
-        addRequiredEntities(
-            Set.of(
-                CollectedVolumeItem.class
-            )
-        );
+        addRequiredEntities(Set.of(ArticleInCollectedVolume.class));
     }
 
     @Override
diff --git a/sci-publications/src/main/java/org/scientificcms/publications/contenttypes/ArticleInJournalItemImExporter.java b/sci-publications/src/main/java/org/scientificcms/publications/contenttypes/ArticleInJournalItemImExporter.java
index cca9732..197ae8c 100644
--- a/sci-publications/src/main/java/org/scientificcms/publications/contenttypes/ArticleInJournalItemImExporter.java
+++ b/sci-publications/src/main/java/org/scientificcms/publications/contenttypes/ArticleInJournalItemImExporter.java
@@ -2,7 +2,7 @@ package org.scientificcms.publications.contenttypes;
 
 import org.libreccm.imexport.Processes;
 import org.librecms.contentsection.AbstractContentItemImExporter;
-import org.scientificcms.publications.assets.JournalAsset;
+import org.scientificcms.publications.ArticleInJournal;
 
 import java.util.Set;
 
@@ -19,13 +19,9 @@ public class ArticleInJournalItemImExporter
 
     @Override
     protected void initContentItemImExporter() {
-        addRequiredEntities(
-            Set.of(
-                JournalAsset.class
-            )
-        );
+        addRequiredEntities(Set.of(ArticleInJournal.class));
     }
-    
+
     @Override
     public Class<ArticleInJournalItem> getEntityClass() {
         return ArticleInJournalItem.class;
diff --git a/sci-publications/src/main/java/org/scientificcms/publications/contenttypes/CollectedVolumeItemImExporter.java b/sci-publications/src/main/java/org/scientificcms/publications/contenttypes/CollectedVolumeItemImExporter.java
index 649e2e5..1b9d311 100644
--- a/sci-publications/src/main/java/org/scientificcms/publications/contenttypes/CollectedVolumeItemImExporter.java
+++ b/sci-publications/src/main/java/org/scientificcms/publications/contenttypes/CollectedVolumeItemImExporter.java
@@ -2,7 +2,7 @@ package org.scientificcms.publications.contenttypes;
 
 import org.libreccm.imexport.Processes;
 import org.librecms.contentsection.AbstractContentItemImExporter;
-import org.scientificcms.publications.assets.PublisherAsset;
+import org.scientificcms.publications.CollectedVolume;
 
 import java.util.Set;
 
@@ -19,11 +19,7 @@ public class CollectedVolumeItemImExporter
 
     @Override
     protected void initContentItemImExporter() {
-        addRequiredEntities(
-            Set.of(
-                PublisherAsset.class
-            )
-        );
+        addRequiredEntities(Set.of(CollectedVolume.class));
     }
 
     @Override
diff --git a/sci-publications/src/main/java/org/scientificcms/publications/contenttypes/ExpertiseItemImExporter.java b/sci-publications/src/main/java/org/scientificcms/publications/contenttypes/ExpertiseItemImExporter.java
index a24d197..0e9e88c 100644
--- a/sci-publications/src/main/java/org/scientificcms/publications/contenttypes/ExpertiseItemImExporter.java
+++ b/sci-publications/src/main/java/org/scientificcms/publications/contenttypes/ExpertiseItemImExporter.java
@@ -1,8 +1,8 @@
 package org.scientificcms.publications.contenttypes;
 
 import org.libreccm.imexport.Processes;
-import org.librecms.assets.Organization;
 import org.librecms.contentsection.AbstractContentItemImExporter;
+import org.scientificcms.publications.Expertise;
 
 import java.util.Set;
 
@@ -19,11 +19,7 @@ public class ExpertiseItemImExporter
 
     @Override
     protected void initContentItemImExporter() {
-        addRequiredEntities(
-            Set.of(
-                Organization.class
-            )
-        );
+        addRequiredEntities(Set.of(Expertise.class));
     }
 
     @Override
diff --git a/sci-publications/src/main/java/org/scientificcms/publications/contenttypes/GreyLiteratureItemImExporter.java b/sci-publications/src/main/java/org/scientificcms/publications/contenttypes/GreyLiteratureItemImExporter.java
index 3ef3f88..41ed6b5 100644
--- a/sci-publications/src/main/java/org/scientificcms/publications/contenttypes/GreyLiteratureItemImExporter.java
+++ b/sci-publications/src/main/java/org/scientificcms/publications/contenttypes/GreyLiteratureItemImExporter.java
@@ -1,8 +1,8 @@
 package org.scientificcms.publications.contenttypes;
 
 import org.libreccm.imexport.Processes;
-import org.librecms.assets.Organization;
 import org.librecms.contentsection.AbstractContentItemImExporter;
+import org.scientificcms.publications.GreyLiterature;
 
 import java.util.Set;
 
@@ -19,11 +19,7 @@ public class GreyLiteratureItemImExporter
 
     @Override
     protected void initContentItemImExporter() {
-        addRequiredEntities(
-            Set.of(
-                Organization.class
-            )
-        );
+        addRequiredEntities(Set.of(GreyLiterature.class));
     }
 
     @Override
diff --git a/sci-publications/src/main/java/org/scientificcms/publications/contenttypes/InProceedingsItemImExporter.java b/sci-publications/src/main/java/org/scientificcms/publications/contenttypes/InProceedingsItemImExporter.java
index 9b41d40..27bc1b7 100644
--- a/sci-publications/src/main/java/org/scientificcms/publications/contenttypes/InProceedingsItemImExporter.java
+++ b/sci-publications/src/main/java/org/scientificcms/publications/contenttypes/InProceedingsItemImExporter.java
@@ -2,6 +2,7 @@ package org.scientificcms.publications.contenttypes;
 
 import org.libreccm.imexport.Processes;
 import org.librecms.contentsection.AbstractContentItemImExporter;
+import org.scientificcms.publications.InProceedings;
 
 import java.util.Set;
 
@@ -18,11 +19,7 @@ public class InProceedingsItemImExporter
 
     @Override
     protected void initContentItemImExporter() {
-        addRequiredEntities(
-            Set.of(
-                ProceedingsItem.class
-            )
-        );
+        addRequiredEntities(Set.of(InProceedings.class));
     }
 
     @Override
diff --git a/sci-publications/src/main/java/org/scientificcms/publications/contenttypes/MonographItemImExporter.java b/sci-publications/src/main/java/org/scientificcms/publications/contenttypes/MonographItemImExporter.java
index 3998f7e..ac0c754 100644
--- a/sci-publications/src/main/java/org/scientificcms/publications/contenttypes/MonographItemImExporter.java
+++ b/sci-publications/src/main/java/org/scientificcms/publications/contenttypes/MonographItemImExporter.java
@@ -2,6 +2,7 @@ package org.scientificcms.publications.contenttypes;
 
 import org.libreccm.imexport.Processes;
 import org.librecms.contentsection.AbstractContentItemImExporter;
+import org.scientificcms.publications.Monograph;
 import org.scientificcms.publications.assets.PublisherAsset;
 
 import java.util.Set;
@@ -19,11 +20,7 @@ public class MonographItemImExporter
 
     @Override
     protected void initContentItemImExporter() {
-        addRequiredEntities(
-            Set.of(
-                PublisherAsset.class
-            )
-        );
+        addRequiredEntities(Set.of(Monograph.class));
     }
 
     @Override
diff --git a/sci-publications/src/main/java/org/scientificcms/publications/contenttypes/ProceedingsItemImExporter.java b/sci-publications/src/main/java/org/scientificcms/publications/contenttypes/ProceedingsItemImExporter.java
index dedc780..94d94b5 100644
--- a/sci-publications/src/main/java/org/scientificcms/publications/contenttypes/ProceedingsItemImExporter.java
+++ b/sci-publications/src/main/java/org/scientificcms/publications/contenttypes/ProceedingsItemImExporter.java
@@ -1,9 +1,8 @@
 package org.scientificcms.publications.contenttypes;
 
 import org.libreccm.imexport.Processes;
-import org.librecms.assets.Organization;
 import org.librecms.contentsection.AbstractContentItemImExporter;
-import org.scientificcms.publications.assets.PublisherAsset;
+import org.scientificcms.publications.Proceedings;
 
 import java.util.Set;
 
@@ -20,12 +19,7 @@ public class ProceedingsItemImExporter
 
     @Override
     protected void initContentItemImExporter() {
-        addRequiredEntities(
-            Set.of(
-                Organization.class,
-                PublisherAsset.class
-            )
-        );
+        addRequiredEntities(Set.of(Proceedings.class));
     }
 
     @Override
diff --git a/sci-publications/src/main/java/org/scientificcms/publications/contenttypes/TalkItemImExporter.java b/sci-publications/src/main/java/org/scientificcms/publications/contenttypes/TalkItemImExporter.java
index 034c274..2d679b0 100644
--- a/sci-publications/src/main/java/org/scientificcms/publications/contenttypes/TalkItemImExporter.java
+++ b/sci-publications/src/main/java/org/scientificcms/publications/contenttypes/TalkItemImExporter.java
@@ -2,6 +2,9 @@ package org.scientificcms.publications.contenttypes;
 
 import org.libreccm.imexport.Processes;
 import org.librecms.contentsection.AbstractContentItemImExporter;
+import org.scientificcms.publications.Talk;
+
+import java.util.Set;
 
 import javax.enterprise.context.RequestScoped;
 
@@ -21,7 +24,7 @@ public class TalkItemImExporter
 
     @Override
     protected void initContentItemImExporter() {
-        // Nothing
+        addRequiredEntities(Set.of(Talk.class));
     }
 
 }
diff --git a/sci-publications/src/main/java/org/scientificcms/publications/contenttypes/WorkingPaperItemImExporter.java b/sci-publications/src/main/java/org/scientificcms/publications/contenttypes/WorkingPaperItemImExporter.java
index 73fa6b7..b5c44e6 100644
--- a/sci-publications/src/main/java/org/scientificcms/publications/contenttypes/WorkingPaperItemImExporter.java
+++ b/sci-publications/src/main/java/org/scientificcms/publications/contenttypes/WorkingPaperItemImExporter.java
@@ -1,8 +1,8 @@
 package org.scientificcms.publications.contenttypes;
 
 import org.libreccm.imexport.Processes;
-import org.librecms.assets.Organization;
 import org.librecms.contentsection.AbstractContentItemImExporter;
+import org.scientificcms.publications.WorkingPaper;
 
 import java.util.Set;
 
@@ -19,11 +19,7 @@ public class WorkingPaperItemImExporter
 
     @Override
     protected void initContentItemImExporter() {
-        addRequiredEntities(
-            Set.of(
-                Organization.class
-            )
-        );
+        addRequiredEntities(Set.of(WorkingPaper.class));
     }
 
     @Override