1. ACRIT (Advisory Committee on Research of Information Transfer). Informa-tieverzorging: Onderzoek onderzocht. Rapport van de Ministerigle Verken-ningscommissie Onderzoek Informatieverzorging. Den Haag: Staatsdrukkerij en Uitgeverij, 1984.
2. Ajzen, I., and Fishbein, M., Attitude-behavior relations: a theoretical analysis and review of empirical research. Psychological Bulletin 84, 888–918, 1977.
3. Alberti, E., and Belli, G., Contributions to the Boltzmann-like approach fro traffic flow: A model for concentration dependent driving programs. Transportation Research, 12, 33–42, 1978.
4. Anderson, J.R., Cognitive psychology and its implications. San Francisco: Free-man, 1980.
5. Anderson, J.R. (ed.), Cognitive skills and their acquisition. Hillsdale, NJ: Erl- baum, 1981.