diff --git a/product/ERP5/Document/ImmobilisableItem.py b/product/ERP5/Document/ImmobilisableItem.py
index 5787d973070e7a465cab6bf506ca3a2db7a3ff41..3106de48e7c6d0d9fb33d85b89b9ed1e1b49af09 100644
--- a/product/ERP5/Document/ImmobilisableItem.py
+++ b/product/ERP5/Document/ImmobilisableItem.py
@@ -80,7 +80,6 @@ class ImmobilisableItem(XMLObject, Amount):
                       , PropertySheet.CategoryCore
                       , PropertySheet.DublinCore
                       , PropertySheet.Price
-                      , PropertySheet.Resource
                       , PropertySheet.Item
                       , PropertySheet.Amount
                       , PropertySheet.Reference
diff --git a/product/ERP5/Document/Item.py b/product/ERP5/Document/Item.py
index 5d7fbab7c11c2dc686c5479b20eb500724c2e9e1..c7b7c87c474ec996aab18134516980d121c996a3 100644
--- a/product/ERP5/Document/Item.py
+++ b/product/ERP5/Document/Item.py
@@ -71,7 +71,6 @@ class Item(XMLObject, Amount, ImmobilisableItem):
                       , PropertySheet.CategoryCore
                       , PropertySheet.DublinCore
                       , PropertySheet.Price
-                      , PropertySheet.Resource
                       , PropertySheet.Item
                       , PropertySheet.Amount
                       , PropertySheet.Reference
diff --git a/product/ERP5/PropertySheet/Resource.py b/product/ERP5/PropertySheet/Resource.py
index 6f6ce33b5a8f7b826e7cb766dc56ccdedcf09b08..f7b1c8517e2638d2ce6e573ec814099154752b54 100644
--- a/product/ERP5/PropertySheet/Resource.py
+++ b/product/ERP5/PropertySheet/Resource.py
@@ -152,11 +152,6 @@ class Resource:
             'default'     : [],
             'mode'        : 'w' },
         # Sourcing / planning properties
-        {   'id'          : 'source_reference',
-            'storage_id'  : 'default_source_reference', # Compatibility
-            'description' : 'The references of the resource for default sources',
-            'type'        : 'string',
-            'mode'        : 'w' },
         {   'id'          : 'source_title',
             'storage_id'  : 'default_source_title', # Compatibility
             'description' : 'The titles of the sources of this resource',
@@ -167,11 +162,6 @@ class Resource:
             'acquisition_accessor_id'       : 'getTitle',
             'acquisition_depends'           : None,
             'mode'        : 'w' },
-        {   'id'          : 'destination_reference',
-            'storage_id'  : 'default_destination_reference', # Compatibility
-            'description' : 'The references of the resource for default destinations',
-            'type'        : 'string',
-            'mode'        : 'w' },
         {   'id'          : 'destination_title',
             'storage_id'  : 'default_destination_title', # Compatibility
             'description' : 'The titles of the destinations of this resource',