John Slimick "Current systems implementation languages: One user's view"

[LSI 1971] (1971) [ACM] SIGPLAN Notices 6(10) October 1971 Proceedings of the SIGPLAN symposium on Languages for system implementation 1971, Lafayette, Indiana, United States; October, 1971  

Languages mentioned GOGOL {1961} PDP-1 Algol 60 GOGOL II {1962} Time-sharing ALGOL-60 for PDP-1 GOGOL III {1967} Enhanced Algol 60 (strings and arrays) PASS {1967}