Samson Abramsky, Pasquale Malacaria, Radha Jagadeesan. Full Abstraction for PCF. In Masami Hagiya, John C. Mitchell, editors, Theoretical Aspects of Computer Software, International Conference TACS 94, Sendai, Japan, April 19-22, 1994, Proceedings. Volume 789 of Lecture Notes in Computer Science, pages 1-15, Springer, 1994.