Professor of Human Geography and Demography
The Hague, South Holland, Netherlands
Universiteit Utrecht
Professor of Human Geography and Demography
University of Amsterdam
Professor of Demography
European Science Foundation
Member Standing Committee for the Social Sciences
Leven met Water
voorzitter Wetenschappelijke Adviesraad
NWO
Chair Social Science Division (MaGW and NWO)
Raeflex
visitator
Vrije Universiteit Amsterdam (VU Amsterdam)
Utrecht University