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From: tstein@polyslo.CalPoly.EDU (Tomas Stein)
Newsgroups: comp.lang.lisp
Subject: source for lisp common lisp macros for backtracking
Message-ID: <282b8239.22f1@petunia.CalPoly.EDU>
Date: 11 May 91 05:33:45 GMT
Distribution: usa
Organization: Cal Poly State Univ,CSC Dept,San Luis Obispo,CA 93407
Lines: 20




I'm trying to find the source code for
the common lisp macros described in:

		LISP Macros for Backtracking
		H.J. Maxwell, M.S. Riggle
		AI EXPERT, March 89, pp. 28-39

I tried the AI Bulletin Board, as mentioned in the magazine.
However, I was unable to find this particular code. 
Any hints would be greatly appreciated.

Send replies to      tblandin@polyslo.CalPoly.EDU

Thanks.
Tomas Blandino.