diff -r 741f3108a90f -r e997802b855c src/lemon/concept/undir_graph.h
--- a/src/lemon/concept/undir_graph.h	Sat Nov 13 12:24:01 2004 +0000
+++ b/src/lemon/concept/undir_graph.h	Sat Nov 13 12:53:28 2004 +0000
@@ -47,8 +47,8 @@
 	ue = e;
 
 	Node n;
-	n = graph.head(ue);
-	n = graph.tail(ue);
+	n = graph.target(ue);
+	n = graph.source(ue);
 
 	graph.first(ue);
 	graph.next(ue);