Kahn, Kenneth M. "Concurrent Constraint Programs to Parse and Animate Pictures of Concurrent Constraint Programs" pp943-950

ICOT Staff (Eds.): Fifth Generation Computer Syste (1992) ICOT Staff (Eds.): Fifth Generation Computer Systems '92: Proceedings of the International Conference on Fifth Generation Computer Systems. 1992, June 1-5, Tokyo, Japan. 1262p, IOS Press 1992  

Languages mentioned Pictorial Janus {1992} ToonTalk {1995}