diff --git a/oaipmh-core/src/main/java/info/textgrid/middleware/RecordDelivererAbstract.java b/oaipmh-core/src/main/java/info/textgrid/middleware/RecordDelivererAbstract.java
index 0a77941cdfa3675e8833cd709e209dfdb3803814..022e5a585eaebc01b6b19b14297bbf67801823b9 100644
--- a/oaipmh-core/src/main/java/info/textgrid/middleware/RecordDelivererAbstract.java
+++ b/oaipmh-core/src/main/java/info/textgrid/middleware/RecordDelivererAbstract.java
@@ -7,7 +7,7 @@ import info.textgrid.middleware.oaipmh.RequestType;
 /**
  * @author Maximilian Brodhun, SUB Göttingen
  * @author Stefan E. Funk, SUB Göttingen
- * @version 2021-07-06
+ * @version 2021-07-21
  * @since 2019-03-07
  */
 
diff --git a/oaipmh-core/src/main/java/info/textgrid/middleware/RecordDelivererDATACITE.java b/oaipmh-core/src/main/java/info/textgrid/middleware/RecordDelivererDATACITE.java
index cad417d37d9793bb57a60a65041ac7cd37ae7f80..d6923ef265a9569afc2bccf13605cfb6423fca2c 100644
--- a/oaipmh-core/src/main/java/info/textgrid/middleware/RecordDelivererDATACITE.java
+++ b/oaipmh-core/src/main/java/info/textgrid/middleware/RecordDelivererDATACITE.java
@@ -21,7 +21,6 @@ import info.textgrid.middleware.oaipmh.HeaderType;
 import info.textgrid.middleware.oaipmh.OAIPMHtype;
 import info.textgrid.middleware.oaipmh.ObjectFactory;
 import info.textgrid.middleware.oaipmh.OpenaireDescriptionType;
-import info.textgrid.middleware.oaipmh.RecordType;
 import info.textgrid.middleware.oaipmh.RelatedIdentifierType;
 import info.textgrid.middleware.oaipmh.RelationType;
 import info.textgrid.middleware.oaipmh.Resource;
@@ -54,7 +53,7 @@ import info.textgrid.middleware.oaipmh.Resource.Titles.Title;
 /**
  * @author Maximilian Brodhun, SUB Göttingen
  * @author Stefan E. Funk, SUB Göttingen
- * @version 2021-07-12
+ * @version 2021-07-21
  * @since 2020-06-13
  */
 @Component
diff --git a/oaipmh-core/src/main/java/info/textgrid/middleware/RecordDelivererDC.java b/oaipmh-core/src/main/java/info/textgrid/middleware/RecordDelivererDC.java
index 8dd1d3918e80f012f6eca630aed98919968a6a77..01646955e614c15395b431481c1e9e2a3080b1fc 100644
--- a/oaipmh-core/src/main/java/info/textgrid/middleware/RecordDelivererDC.java
+++ b/oaipmh-core/src/main/java/info/textgrid/middleware/RecordDelivererDC.java
@@ -24,7 +24,6 @@ import info.textgrid.middleware.oaipmh.RecordType;
  * @version 2021-07-06
  * @since 2014-02-17
  */
-
 @Component
 public class RecordDelivererDC extends RecordDelivererAbstract {
 
@@ -50,6 +49,15 @@ public class RecordDelivererDC extends RecordDelivererAbstract {
     RecordType record = new RecordType();
     DublinCoreBuilder dublinCoreBuilder;
 
+    System.out.println("  ##  fields (getRecordById): ");
+    if (this.fields != null) {
+      for (int i = 0; i < this.fields.length; i++) {
+        System.out.println("\t" + this.fields[i]);
+      }
+    } else {
+      System.out.println("NULL");
+    }
+
     String changedId = id;
     if (id.startsWith(this.repositoryObjectURIPrefix)) {
       // FIXME Why do we need changeID? Where is it used?