diff -r 741f3108a90f -r e997802b855c src/lemon/dfs.h
--- a/src/lemon/dfs.h	Sat Nov 13 12:24:01 2004 +0000
+++ b/src/lemon/dfs.h	Sat Nov 13 12:53:28 2004 +0000
@@ -206,7 +206,7 @@
       OutEdgeIt e;
       do {
 	if((e=Q[Qh])!=INVALID)
-	  if((m=G->head(e))!=s && (*predecessor)[m=G->head(e)]==INVALID) {
+	  if((m=G->target(e))!=s && (*predecessor)[m=G->target(e)]==INVALID) {
 	    predecessor->set(m,e);
 	    pred_node->set(m,n);
 	    Q[++Qh] = OutEdgeIt(*G, m);
@@ -214,7 +214,7 @@
 	    n=m;
 	  }
 	  else ++Q[Qh];
-	else if(--Qh>=0) n=G->tail(Q[Qh]);
+	else if(--Qh>=0) n=G->source(Q[Qh]);
       } while(Qh>=0);
     }