1. Haffner MEA (1991) Fiscal Treatment of Owner-occupiers in the EEC. OTB, Delft
2. Københavns Komune (City of Copenhagen) (1999) Boliger for Alle. Boligpolitisk Strategiplan 2001-04 [Housing for All. Strategic Plan for Housing Policy]
3. Lunde J, Hvidt A (1999) Privatøkonomiske Konsekvenser af Bosætning Forskellige Steder i Hovedstadsregionen og Boligpolitikkens Betydning for Dette [Private Financial Consequences by Taking Up Residence in Different Parts of the Metropolitan Region and the Importance of Housing Policy for This]. Appendix no. 9 to Skifter Andersen and Borgegård 1999
4. Ministry of Housing and Urban Affairs (1999) Housing, Building and Urban Affairs in Denmark
5. PLS-Rambøll (2001), Kommunernes Boligpolitik [Local Housing Policy]