1. L.D. Baxter; 'An efficient Unification Algorithm' Rep. CS-73-23 University of Waterloo Dept. of Analysis and Computer Science 1973 L.D. Baxter; 'An efficient Unification Algorithm' Rep. CS-73-23 University of Waterloo Dept. of Analysis and Computer Science 1973
2. Bennett Easton Guard Settle; 'CRT-aided semiautomated mathematics' AFCRL-63 Applied Logic Corp. 1963 Bennett Easton Guard Settle; 'CRT-aided semiautomated mathematics' AFCRL-63 Applied Logic Corp. 1963
3. Bennett Easton; 'CRT-aided semi-automated mathematics' AFCRL-65 Applied Logic Corporation 1965 Bennett Easton; 'CRT-aided semi-automated mathematics' AFCRL-65 Applied Logic Corporation 1965