Stichting Mathematisch Centrum
Stichting Mathematisch Centrum. Rekenafdeling

de Bakker, J. (1967). Problems in the theory of programming languages : Lecture 1967 International congress for logic, methodology and philosophy of science, Amsterdam 29.08.1967. In Stichting Mathematisch Centrum. Rekenafdeling (MR 91/67). Stichting Mathematisch Centrum.