[ACM SIGACT-SIGPLAN] Proceedings of the 14th ACM SIGACT-SIGPLAN symposium on Principles of programming languages, January 21-23, 1987, Munich, West Germany

[SIGPLAN] SIGPLAN Notices  

Jaffar and Lassez, 1987 J. (1987) Jaffar and Lassez, 1987 J. Jaffar , J.-L. Lassez, Constraint logic programming, Saraswat, V (1987) Saraswat, V "The Concurrent Logic Programming Language CP: Definition and Operational Semantics" pp49-62