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Items where Institute is "Ned. Interdisc. Demografisch Instituut (NIDI)" and Year is 1981

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Number of items: 4.


Willekens, F.J. and Por, A. and Raquillet, R. (1981) Entropy, multiproportional, and quadratic techniques for inferring patterns of migration from aggregate data. IIASA Reports. A Journal of International Applied Systems Analysis, 4, 83-124. Revised version. (NIDI-reprint no. 21).

Chapter/Part of Book

Willekens, F.J. (1981) Evaluatie-onderzoek: mogelijkheden en problemen. In: Vereniging voor Economie, Overheidsinterventies. Effectiviteit en efficiƫntie, (pp. 633-648). (Evaluation research: possibilities and problems).

Conference Contribution

Willekens, F.J. (1981) Het N.I.D.I.-onderzoek: differentiatie en expansie. In: "N.I.D.I. 10 jaar: voordrachten gehouden tijdens de viering van het tweede lustrum te Utrecht op 14 november 1980" / N.I.D.I., (pp. 51-61).


Willekens, F.J. and Philipov, D. (1981) Dynamics of multiregional population systems: a mathematical analysis of the growth path. 67 p..

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