diff -r 9ae88e7c04a7 -r e20173729589 lemon/circulation.h
--- a/lemon/circulation.h	Fri Nov 13 17:30:26 2009 +0100
+++ b/lemon/circulation.h	Fri Nov 13 18:10:06 2009 +0100
@@ -306,7 +306,7 @@
     /// The Elevator should have standard constructor interface to be
     /// able to automatically created by the algorithm (i.e. the
     /// digraph and the maximum level should be passed to it).
-    /// However an external elevator object could also be passed to the
+    /// However, an external elevator object could also be passed to the
     /// algorithm with the \ref elevator(Elevator&) "elevator()" function
     /// before calling \ref run() or \ref init().
     /// \sa SetElevator