Stichting Mathematisch Centrum
Stichting Mathematisch Centrum. Mathematische Besliskunde

Kolen, A. (1979). On "A cut approach to the rectilinear distance facility location problem" by J.-C. Picard and H. D. Ratliff : (preprint). Stichting Mathematisch Centrum. Mathematische Besliskunde. Stichting Mathematisch Centrum.