1. Boesjes‐Hommes RW (1974)De geldige operationalisering van begrippen[The valid operationalization of concepts] (Meppel, Boom)
2. Carlier E Kousemaker NPJ Sigmond‐de Bruin EM (1989)Diagnostiek in de hulpverlening: Mode in praktijk[Diagnostics in care: model in practice] (Amsterdam and Lisse, Swets & Zeitlinger)
3. M.I.E.T.S. (MENTAL IMPAIRMENT EVALUATION AND TREATMENT SERVICE): A SERVICE OPTION FOR PEOPLE WITH MILD MENTAL HANDICAPS AND CHALLENGING BEHAVIOUR AND/OR PSYCHIATRIC PROBLEMS
4. Council for Health Research (RGO) (1990)Advies Kwaliteit van zorg. Terreinverkenning en prioriteiten voor wetenschappelijk onderzoek. Advies no. 6[Recommendation quality of care. Exploration and priorities for scientific research, No. 6] (’s‐Gravenhage, Council for Health Research)
5. Council for Societal Developments (RMO) (2002)De handicap van de samenleving. Over mogelijkheden en beperkingen van community care. Advies nr. 25[The handicap of the society. About possibilities and limitations of community care, No. 25] (’s‐Gravenhage, Sdu)