Stichting Mathematisch Centrum
Stichting Mathematisch Centrum. Rekenafdeling

de Bakker, J. (1970). Semantics of programming languages : (Advances in information system science, 2(1969), p 173-227). In Stichting Mathematisch Centrum. Rekenafdeling (MR 109/70/R). Stichting Mathematisch Centrum.