1. The semantics of predicate logic as a programming language;van Emden;Journal of the ACM,1976
2. On the declarative and procedural semantics of logic programs;Przymusinski;Journal of Automated Reasoning,1989
3. Stepwise development of operational and denotational semantics for Prolog;Jones,1984
4. Denotational and operational semantics for Prolog;Debray,1987
5. A semantics-based framework for the abstract interpretation of Prolog;Jones,1987