Backus, John "Programming in America in the nineteen fifties - some personal impressions" pp125-135

Metropolis, N. (1980) Metropolis, N. et al., (eds.),A History of Computing in the Twentieth Century (Proceedings of the International Conference on the History of Computing, June 10 15, 1976) Academic Press, New York, 1980   John Backus

Languages mentioned Algebraic {1953} MIT Automatic Coding System Comprehensive {1953} MIT Combined interactive and automatic coding system FORTRAN {1954} Backus et al high-level compiler IAL {1958} International Algebraic Language Laning and Zierler {1953} Algebraic Interpreter