diff --git a/src/main/java/org/gcube/informationsystem/resourceregistry/er/entity/EntityManagement.java b/src/main/java/org/gcube/informationsystem/resourceregistry/er/entity/EntityManagement.java
index b82e89b..b1b1169 100644
--- a/src/main/java/org/gcube/informationsystem/resourceregistry/er/entity/EntityManagement.java
+++ b/src/main/java/org/gcube/informationsystem/resourceregistry/er/entity/EntityManagement.java
@@ -234,14 +234,10 @@ public abstract class EntityManagement<E extends Entity> extends ERManagement<E,
 		return jsonArray.toString();
 	}
 	
-	
-	
-	public String reallyQuery(String relationType, String referenceType, Direction direction,
-			boolean polymorphic, Map<String,String> constraint) throws ResourceRegistryException {
+	public String reallyQuery(String relationType, String referenceType, Direction direction, boolean polymorphic,
+			Map<String,String> constraint) throws ResourceRegistryException {
 		JSONArray jsonArray = new JSONArray();
 		
-		
-		
 		// TODO check types
 		
 		/*
@@ -251,8 +247,6 @@ public abstract class EntityManagement<E extends Entity> extends ERManagement<E,
 		 * WHERE @class='EService' // Only is not polymorphic
 		 */
 		
-		boolean first = true;
-		
 		StringBuilder selectStringBuilder = new StringBuilder("SELECT FROM (TRAVERSE ");
 		selectStringBuilder.append(direction.name().toLowerCase());
 		selectStringBuilder.append("E('");
@@ -263,6 +257,7 @@ public abstract class EntityManagement<E extends Entity> extends ERManagement<E,
 		selectStringBuilder.append(erType);
 		selectStringBuilder.append("') FROM (SELECT FROM ");
 		selectStringBuilder.append(referenceType);
+		boolean first = true;
 		for(String key : constraint.keySet()) {
 			if(first) {
 				selectStringBuilder.append(" WHERE ");
@@ -350,7 +345,7 @@ public abstract class EntityManagement<E extends Entity> extends ERManagement<E,
 				throw new ResourceRegistryException(error);
 			}
 			
-			if(constraint==null) {
+			if(constraint == null) {
 				constraint = new HashMap<>();
 			}
 			
@@ -388,7 +383,7 @@ public abstract class EntityManagement<E extends Entity> extends ERManagement<E,
 					break;
 			}
 			
-			if(referenceUUID!=null) {
+			if(referenceUUID != null) {
 				constraint.put(Entity.HEADER_PROPERTY + "." + Header.UUID_PROPERTY, referenceUUID.toString());
 			}
 			
diff --git a/src/main/java/org/gcube/informationsystem/resourceregistry/rest/Access.java b/src/main/java/org/gcube/informationsystem/resourceregistry/rest/Access.java
index 02bbf7f..8032a1a 100644
--- a/src/main/java/org/gcube/informationsystem/resourceregistry/rest/Access.java
+++ b/src/main/java/org/gcube/informationsystem/resourceregistry/rest/Access.java
@@ -283,8 +283,29 @@ public class Access {
 	}
 	
 	/*
-	 * /access/query/{RESOURCE_TYPE_PATH_PART}/{RELATION_TYPE_PATH_PART}/{ENTITY_TYPE_NAME}[?reference=&polymorphic=true&direction=out]
-	 * e.g. GET /access/query/EService/isIdentifiedBy/SoftwareFacet?reference=16032d09-3823-444e-a1ff-a67de4f350a8&polymorphic=true&direction=out
+	 * /access/query/{RESOURCE_TYPE_NAME}/{RELATION_TYPE_NAME}/{ENTITY_TYPE_NAME}[?reference={REFERENCE_ENTITY_UUID}&polymorphic=true&direction=out]
+	 * 
+	 * e.g.
+	 * All the EService identified By a SoftwareFacet : 
+	 * GET /access/query/EService/isIdentifiedBy/SoftwareFacet?polymorphic=true&direction=out
+	 * 
+	 * The Eservice identified By the SoftwareFacet with UUID 7bc997c3-d005-40ff-b9ed-c4b6a35851f1 :
+	 * GET /access/query/EService/isIdentifiedBy/SoftwareFacet?reference=7bc997c3-d005-40ff-b9ed-c4b6a35851f1&polymorphic=true&direction=out
+	 * 
+	 * All the Resources identified By a ContactFacet : 
+	 * GET /access/query/Resource/isIdentifiedBy/ContactFacet?polymorphic=true&direction=out
+	 * 
+	 * All the Resources with a ContactFacet : 
+	 * /access/query/Resource/ConsistsOf/ContactFacet?polymorphic=true&direction=out
+	 * 
+	 * All the Eservice having an incoming (IN) Hosts relation with an HostingNode (i.e. all smartgears services)
+	 * GET /access/query/EService/Hosts/HostingNode?polymorphic=true&direction=in
+	 * 
+	 * All the Eservice having an incoming (IN) Hosts relation (i.e. hosted by) the HostingNode with UUID 
+	 * 16032d09-3823-444e-a1ff-a67de4f350a 
+	 * 
+	 * GET /access/query/EService/hosts/HostingNode?reference=16032d09-3823-444e-a1ff-a67de4f350a8&polymorphic=true&direction=in
+	 * 
 	 */
 	@SuppressWarnings({"rawtypes"})
 	@GET