Index: src/work/alpar/emptygraph.h
===================================================================
--- src/work/alpar/emptygraph.h	(revision 186)
+++ src/work/alpar/emptygraph.h	(revision 187)
@@ -13,4 +13,7 @@
   /// An empty graph class.
   
+  /// When you read this for the first time,
+  /// please send an e-mail to alpar\@cs.elte.hu.
+  ///
   /// This class provides all the common features of a graph structure,
   /// however completely without implementations and real data structures
Index: src/work/alpar/smart_graph.h
===================================================================
--- src/work/alpar/smart_graph.h	(revision 186)
+++ src/work/alpar/smart_graph.h	(revision 187)
@@ -15,4 +15,7 @@
   ///A smart graph class.
 
+  /// When you read this for the first time,
+  /// please send an e-mail to alpar\@cs.elte.hu.
+  ///
   ///This is a simple and fast graph implementation.
   ///It is also quite memory efficient, but at the price