1. Backus, J.W.: The IBM 701 speedcoding system. J. Assoc. Comput. Mach. 1(1), 4–6 (1954)
2. Backus, J.W.: Automatic programming: properties and performance of FORTRAN systems I and II (1958). In: Mechanisation of Thought Processes: Proceedings of a Symposium held at the National Physical Laboratory, 24th, 25th, 26th and 27th November 1958, pp. 231–248. National Physical Laboratory, HMSO, London (1959)
3. Backus, J.W.: The syntax and semantics of the proposed international algebraic language of the Zurich ACM-GAMM conference (1959). In: Proceedings of the International Conference on Information Processing, Unesco, Paris, 15–20 June 1959, pp. 125–132. Unesco, Oldenbourg and Butterworths, Paris, Munich, London (1960)
4. Backus, J.W.: Programming in America in the 1950s—some personal impressions (1980). In: Metropolis, N., Howlett, J., Rota, G.-C. (eds.) A History of Computing in the Twentieth Century. Academic Press, San Diego (1980)
5. Backus, J.W.: ALGOL session: transcript of question and answer session (1981a). In: Wexelblat, R.L. (ed.) History of Programming Languages, p. 162. Academic Press, San Diego (1981)