Steil, G. P., "File management on a small computer," pp199-203

[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 C-10 {1966} Improved version of COLINGO PROFILE {1967} Pattern matching language