Stichting Mathematisch Centrum
Stichting Mathematisch Centrum. Rekenafdeling

van Wijngaarden, A. (1966). Recursive definition of syntax and semantics : (Proceedings IFIP working conference on formal language description languages, Vienna 1966, p 13-24). Stichting Mathematisch Centrum. Rekenafdeling. Stichting Mathematisch Centrum.