> I'd rather see the actual papers, but that's a start. Thanks much.

One of the pages the search linked to mentioned that the program was
thousands of lines long (and being written in 1976 would likely be in
Fortran, yuck.)  Should that really be posted to TSE?

Why not look up the papers and get the answer from the author of how the
case weres pared down to the hundreds instead of asking others who haven't
read the papers either?  Something this complicated is probably best read in
a journal than on-line anyway.

Despite the risk of sounding arrogant, I think that further discussion on
this topic should be handled with private e-mails between the interested
parties.  We had someone quit yesterday due partly to the volume of e-mails.
This would probably have sent her over the edge of sanity.

Regards,
   Rick Parker

Why not use five colors anyway?