diff --git a/src/main/java/org/gcube/grsf/publisher/rest/FisheryRESTAPIs.java b/src/main/java/org/gcube/grsf/publisher/rest/FisheryRESTAPIs.java
index 81d1918..2513193 100644
--- a/src/main/java/org/gcube/grsf/publisher/rest/FisheryRESTAPIs.java
+++ b/src/main/java/org/gcube/grsf/publisher/rest/FisheryRESTAPIs.java
@@ -264,6 +264,7 @@ public class FisheryRESTAPIs extends BaseRESTAPIs<FisheryRecord> {
 	 * but it still exists and can be restored.
 	 * In case of purge, the record is completely deleted and cannot be restored.
 	 * @param id the GRSF UUID of the fishery record to delete/purge
+	 * @param purge (default false) a boolean indicating if the fishery record must be deleted or purged (when true)
 	 * @pathExample /fishery/d0145931-58d3-4561-bf64-363b61df016b?purge=true
 	 */
 	@DELETE
diff --git a/src/main/java/org/gcube/grsf/publisher/rest/StockRESTAPIs.java b/src/main/java/org/gcube/grsf/publisher/rest/StockRESTAPIs.java
index 97b1c8e..985e259 100644
--- a/src/main/java/org/gcube/grsf/publisher/rest/StockRESTAPIs.java
+++ b/src/main/java/org/gcube/grsf/publisher/rest/StockRESTAPIs.java
@@ -263,6 +263,7 @@ public class StockRESTAPIs extends BaseRESTAPIs<StockRecord> {
 	 * but it still exists and can be restored.
 	 * In case of purge, the record is completely deleted and cannot be restored.
 	 * @param id the GRSF UUID of the stock record to delete/purge
+	 * @param purge (default false) a boolean indicating if the stock record must be deleted or purged (when true)
 	 * @pathExample /stock/23fd6734-b7cd-37eb-8b43-03b1495dd7af
 	 */
 	@DELETE
diff --git a/src/main/java/org/gcube/grsf/publisher/rest/TraceabilityUnitRESTAPIs.java b/src/main/java/org/gcube/grsf/publisher/rest/TraceabilityUnitRESTAPIs.java
index b1a7e36..d6b8834 100644
--- a/src/main/java/org/gcube/grsf/publisher/rest/TraceabilityUnitRESTAPIs.java
+++ b/src/main/java/org/gcube/grsf/publisher/rest/TraceabilityUnitRESTAPIs.java
@@ -263,6 +263,7 @@ public class TraceabilityUnitRESTAPIs extends BaseRESTAPIs<TraceabilityUnitRecor
 	 * but it still exists and can be restored.
 	 * In case of purge, the record is completely deleted and cannot be restored.
 	 * @param id the GRSF UUID of the traceability unit record to delete/purge
+	 * @param purge (default false) a boolean indicating if the traceability unit record must be deleted or purged (when true)
 	 * @pathExample /traceability-unit/00454650-b66c-32f9-ae32-eff038dd1e1d
 	 */
 	@DELETE