Apartment splitting and vacancy : a study of the long-term vacancy of prewar apartments in RotterdamThe administrative and actual vacancy rate of dwellings in The Hague on October 1, 1985Housing vacancy in theory and practice : a closer look at possible causes, developments and consequences of vacancy in relation to policy : executive summary'Problem complexes' in the Netherlands: 1985 and 1989The desired vacancy rate : an examination of municipal differencesHousing requisitioning and urban renewal : an analysis of existing and future requisitioning instruments for urban renewal practice