--- documentation/manual/grammar/polymorphic.yo.orig	2007-10-18 13:15:45.000000000 +0200
+++ documentation/manual/grammar/polymorphic.yo	2009-03-05 16:11:43.000000000 +0100
@@ -1,7 +1,6 @@
 Below the way Bisonc++ may use a polymorphic semantic value is discussed. The
 approach discussed below is a direct result of an suggestion initially made by
-Dallas A. Clement in September 2007. All sources of the example discussed
-below are found in the link(here)(poly).
+Dallas A. Clement in September 2007.
 
 One may wonder why a tt(union) is still used by Bisonc++ as bf(C++) offers
 inherently superior approaches to combine multiple types in one type. The