Nelson, Donald B; Pick, Richard A; and Andrews, Kenton B; "GIM-1, a generalized information management language and computer system" pp169-173

[AFIPS] Proceedings of the 1967 Spring Joint Compu (1967) [AFIPS] Proceedings of the 1967 Spring Joint Computer Conference, April 18-20, Atlantic City, N. J. SJCC 30  

Languages mentioned GIM-I {1966} Information retrieval language