1. Blanton, H., & Jaccard, J. (2006). Arbitrary metrics in psychology. American Psychologist, 61, 27-41.
2. Bornstein, M. (2002). Handbook of Parenting Vol I-V. New Jersey: Lawrence Erlbaum Associates Publishers.
3. Damasio, A. (2000). The feeling of what happens, body emotion and the making of consciousness. London: Vintage.
4. Davanloo, H. (2000). Intensive Short-term Dynamic Psychotherapy, Selected Papers. New York: John Wiley.
5. Derksen, J. (1983). Psychotherapieën in het geding. Baarn: Nelissen.