Author: Adapted by Heidi Burgiel.
The
original version of these notes can be found through Chaim Goodman-Strauss's homepage.
Comments to:
webmaster@geom.umn.edu
Created: Dec 7 1995 ---
Last modified: Tue Jun 11 10:42:38 1996
Copyright © 1995-1996 by
The Geometry Center
All rights reserved.