diff --git a/oaipmh-core/src/main/java/info/textgrid/middleware/IdentifierListDelivererDC.java b/oaipmh-core/src/main/java/info/textgrid/middleware/IdentifierListDelivererDC.java
index d0e88e7bda696e3fde3d962ee5df3fddf1118b28..ba6b3b6d91f363fe39e66f47f0d9a0e1f68349e1 100644
--- a/oaipmh-core/src/main/java/info/textgrid/middleware/IdentifierListDelivererDC.java
+++ b/oaipmh-core/src/main/java/info/textgrid/middleware/IdentifierListDelivererDC.java
@@ -190,6 +190,9 @@ public class IdentifierListDelivererDC extends IdentifierListDelivererAbstract {
 
         System.out.println("  ##  keys     -->  " + hit.getSourceAsMap().keySet());
         System.out.println("  ##  entries  -->  " + hit.getSourceAsMap().entrySet());
+        System.out.println("  ##  " + this.dateOfObjectCreation + "(" + hit.getId() + ")  -->  "
+            + (hit.getSourceAsMap().get(this.dateOfObjectCreation) == null ? "NULL"
+                : hit.getSourceAsMap().get(this.dateOfObjectCreation)));
 
         try {
           this.datestamp = hit.getSourceAsMap().get(this.dateOfObjectCreation).toString();