Lackner, M. R. "Toward a general simulation capability"

[AFIPS JCC 21] Proceedings of the 1962 Spring Join (1962) [AFIPS JCC 21] Proceedings of the 1962 Spring Joint Computer Conference in San Francisco, Ca. SJCC 1962  

Languages mentioned SIMPAC {1962} Fixed step simulation language SIMPAC {1960} Initial, exploratory version at SDC