Copyright 2004-2013 by Roberto
All rights reserved. Unlimited permission to copy or use is hereby
granted for non-profit driven enterprise subject to inclusion of this
copyright notice and my World Wide Web URL:
http://users.monash.edu.au/~weinberg. I would very much appreciate an
email stating how this material will be used. Thanks, RW.
DISCLAIMER. The material in this website has not undegone the scrutiny
of Monash University and does not conform to its corporate outlook. It
is entirely based on a free-spritied, curiosity-driven research effort
by the author, and therefore in no way expresses the official position
of the University.