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 8713983..4037c63 100644
--- a/sci-publications/src/main/java/org/scientificcms/publications/ArticleInCollectedVolumeImExporter.java
+++ b/sci-publications/src/main/java/org/scientificcms/publications/ArticleInCollectedVolumeImExporter.java
@@ -2,9 +2,9 @@ package org.scientificcms.publications;
 
 import org.libreccm.imexport.Processes;
 
+import java.util.Objects;
 import java.util.Set;
 
-import javax.annotation.PostConstruct;
 import javax.enterprise.context.RequestScoped;
 
 /**
@@ -22,9 +22,41 @@ public class ArticleInCollectedVolumeImExporter
     }
 
     @Override
-    @PostConstruct
-    protected void init() {
+    protected void initPublicationImExporter() {
         addRequiredEntities(Set.of(CollectedVolume.class));
     }
 
+    @Override
+    protected void updateExistingPublication(
+        final ArticleInCollectedVolume existingPublication,
+        final ArticleInCollectedVolume withImportedPublication
+    ) {
+        if (!Objects.equals(
+            existingPublication.getStartPage(),
+            withImportedPublication.getStartPage()
+        )) {
+            existingPublication.setStartPage(
+                withImportedPublication.getStartPage()
+            );
+        }
+        
+        if (!Objects.equals(
+            existingPublication.getEndPage(),
+            withImportedPublication.getEndPage()
+        )) {
+            existingPublication.setEndPage(
+                withImportedPublication.getEndPage()
+            );
+        }
+        
+        if (!Objects.equals(
+            existingPublication.getChapter(),
+            withImportedPublication.getChapter()
+        )) {
+            existingPublication.setChapter(
+                withImportedPublication.getChapter()
+            );
+        }
+    }
+
 }