1. Aberg, J. & Shahmehri, N. (1999), Web Assistants: Towards an Intelligent and Personal Web Shop, Proceedings of the Second Workshop on Adaptive Systems and User Modelling on the World Wide Web,
http://www.contrib.andrew.cmu.edu
/-plb/wwwum99_workshop/aberg/aberg.html.
2. Ambrosini, L., Cirillo, V. & Micarelli, A. (1997), A Hybrid Architecture for User-adapted Information Filtering on the World Wide Web, in A. Jameson, C. Paris & C. Tasso (eds.), Proceedings of the Sixth International Conference on User Modelling, UM’97, Springer-Verlag, pp. 59–61.
3. Ardissono, L. & Goy, A. (1999), Tailoring the Interaction with Users in Electronic Shops, in J. Kay (ed.), Proceedings of the Seventh International Conference on User Modelling, UM’99, Springer-Verlag, pp.35–44.
4. Balabanovic, M. & Shoham, Y. (1997), “Content-based Collaborative Recommendation”, Communications of the ACM
40(3), 66–72.
5. Benaki, E., Karkaletsis, V. & Spyrolopoulos, C. (1997), Integrating User Modelling into Information Extraction: The UMIE Prototype, in A. Jameson, C. Paris & C. Tasso (eds.), Proceedings of the Sixth International Conference on User Modelling, UM’97, Springer-Verlag, pp.55–7.