diff --git a/citesphere-messages/src/main/java/edu/asu/diging/citesphere/messages/KafkaTopics.java b/citesphere-messages/src/main/java/edu/asu/diging/citesphere/messages/KafkaTopics.java
index 998fad5..341a8ef 100644
--- a/citesphere-messages/src/main/java/edu/asu/diging/citesphere/messages/KafkaTopics.java
+++ b/citesphere-messages/src/main/java/edu/asu/diging/citesphere/messages/KafkaTopics.java
@@ -7,5 +7,16 @@ public interface KafkaTopics {
 
     public final static String REFERENCES_EXPORT_TOPIC = "_citesphere_export_references_topic";
     public final static String REFERENCES_EXPORT_DONE_TOPIC = "_citesphere_export_references_done_topic";
+    
+    /**
+    * The name of the Kafka topic used for collection import events. Messages published to this topic
+    * will trigger import processing of citations to a collection/group from BibTex File, which 
+    * is exported from Zotero.
+    */
+    public final static String COLLECTION_IMPORT_TOPIC = "_citesphere_import_collections_topic";
+    /**
+     * The name of the Kafka topic used for crossref citation import events. Messages published to this topic
+     * will trigger import processing of citations to a group from crossref.
+     */
     public final static String REFERENCES_IMPORT_CROSSREF_TOPIC = "_citesphere_import_crossref_topic";
 }