diff --git a/sci-publications/src/main/java/org/scientificcms/publications/Authorship.java b/sci-publications/src/main/java/org/scientificcms/publications/Authorship.java
index 95db734..61f41f6 100644
--- a/sci-publications/src/main/java/org/scientificcms/publications/Authorship.java
+++ b/sci-publications/src/main/java/org/scientificcms/publications/Authorship.java
@@ -22,6 +22,8 @@ import javax.persistence.GenerationType;
 import javax.persistence.Id;
 import javax.persistence.JoinColumn;
 import javax.persistence.ManyToOne;
+import javax.persistence.NamedQueries;
+import javax.persistence.NamedQuery;
 import javax.persistence.Table;
 
 import static org.scientificcms.publications.SciPublicationsConstants.*;
@@ -38,7 +40,13 @@ import static org.scientificcms.publications.SciPublicationsConstants.*;
     property = "uuid",
     scope = Authorship.class
 )
-public class Authorship 
+@NamedQueries({
+    @NamedQuery(
+        name = "Authorhship.findByUuid",
+        query = "SELECT a FROM Authorship a WHERE a.uuid = :uuid"
+    )
+})
+public class Authorship
     implements Exportable, Serializable, Comparable<Authorship> {
 
     private static final long serialVersionUID = 1L;
@@ -171,7 +179,7 @@ public class Authorship
         return String.format("%s{ "
                                  + "authorshipId = %d, "
                                  + "uuid = %s, "
-                                 + "author = %s " 
+                                 + "author = %s "
                                  + "editor = %b, "
                                  + "authorOrder = %d%s "
                                  + "}",
diff --git a/sci-publications/src/main/java/org/scientificcms/publications/AuthorshipImExporter.java b/sci-publications/src/main/java/org/scientificcms/publications/AuthorshipImExporter.java
index f521297..6864d61 100644
--- a/sci-publications/src/main/java/org/scientificcms/publications/AuthorshipImExporter.java
+++ b/sci-publications/src/main/java/org/scientificcms/publications/AuthorshipImExporter.java
@@ -16,6 +16,7 @@ import org.scientificcms.publications.contenttypes.TalkItem;
 import org.scientificcms.publications.contenttypes.WorkingPaperItem;
 
 import java.util.Objects;
+import java.util.Optional;
 import java.util.Set;
 
 import javax.annotation.PostConstruct;
@@ -64,19 +65,48 @@ public class AuthorshipImExporter
     }
 
     @Override
-    @Transactional(Transactional.TxType.REQUIRED)
+    protected Optional<Authorship> findExistingEntity(final String uuid) {
+        try {
+            return Optional.of(
+                entityManager
+                    .createNamedQuery("Authorhship.findByUuid", Authorship.class)
+                    .setParameter("uuid", uuid)
+                    .getSingleResult()
+            );
+        } catch (NoResultException ex) {
+            return Optional.empty();
+        }
+    }
+
+    @Override
     protected void saveImportedEntity(final Authorship entity) {
         entityManager.merge(entity);
     }
 
+    @Override
+    protected void updateExistingEntity(
+        final Authorship existingEntity,
+        final Authorship importedEntity
+    ) {
+        if (existingEntity.isEditor() != importedEntity.isEditor()) {
+            existingEntity.setEditor(importedEntity.isEditor());
+        }
+
+        if (existingEntity.getAuthorOrder() != importedEntity.getAuthorOrder()) {
+            existingEntity.setAuthorOrder(importedEntity.getAuthorOrder());
+        }
+
+        entityManager.merge(existingEntity);
+    }
+
     @Override
     protected Authorship reloadEntity(final Authorship entity) {
         try {
             return entityManager.find(
-                Authorship.class, 
+                Authorship.class,
                 entity.getAuthorshipId()
             );
-        } catch(NoResultException ex) {
+        } catch (NoResultException ex) {
             throw new IllegalArgumentException(
                 String.format(
                     "The Authorship entity %s was not found in the database.",