diff --git a/sci-publications/src/main/java/org/scientificcms/publications/InProceedings.java b/sci-publications/src/main/java/org/scientificcms/publications/InProceedings.java
index a1dfa54..c9f1bf5 100644
--- a/sci-publications/src/main/java/org/scientificcms/publications/InProceedings.java
+++ b/sci-publications/src/main/java/org/scientificcms/publications/InProceedings.java
@@ -5,6 +5,8 @@
  */
 package org.scientificcms.publications;
 
+import org.hibernate.envers.Audited;
+
 import java.util.Objects;
 
 import javax.persistence.Entity;
@@ -21,6 +23,7 @@ import static org.scientificcms.publications.SciPublicationsConstants.*;
  */
 @Entity
 @Table(name = "IN_PROCEEDINGS", schema = DB_SCHEMA)
+@Audited
 public class InProceedings extends Publication {
 
     private static final long serialVersionUID = 1L;
diff --git a/sci-publications/src/main/java/org/scientificcms/publications/Proceedings.java b/sci-publications/src/main/java/org/scientificcms/publications/Proceedings.java
index 7457363..8e65f8a 100644
--- a/sci-publications/src/main/java/org/scientificcms/publications/Proceedings.java
+++ b/sci-publications/src/main/java/org/scientificcms/publications/Proceedings.java
@@ -51,7 +51,7 @@ public class Proceedings extends PublicationWithPublisher {
     @JoinColumn(name = "ORGANIZER_ID")
     private Organization organizer;
 
-    @OneToMany(fetch = FetchType.LAZY)
+    @OneToMany(fetch = FetchType.LAZY, mappedBy = "proceedings")
     private List<InProceedings> papers;
 
     public Proceedings() {