diff -r a3402913cffe -r f63e87b9748e lemon/grid_graph.h
--- a/lemon/grid_graph.h	Sat Apr 18 21:54:30 2009 +0200
+++ b/lemon/grid_graph.h	Tue Apr 21 10:34:49 2009 +0100
@@ -497,9 +497,7 @@
   ///\endcode
   ///
   /// This graph type fully conforms to the \ref concepts::Graph
-  /// "Graph" concept, and it also has an important extra feature
-  /// that its maps are real \ref concepts::ReferenceMap
-  /// "reference map"s.
+  /// "Graph concept".
   class GridGraph : public ExtendedGridGraphBase {
   public: