Woodger, M. "The Description Of Computing Processes, Some Observations on Automatic Programming And Algol 60" pp 1-22

Goodman (ed) (1963) Goodman, Richard (ed) "Annual Review in Automatic Programming" (3) 1963 Pergamon Press, Oxford  

Languages mentioned ALGOL 60 {1959} Algorithm Language Generalized ALGOL {1962} ALGOL for generalised grammars