Não informado. (1999). User modeling and user adapted interaction. Kluwer Academic Publishers.
Chicago-Zitierstil (17. Ausg.)Não informado. User Modeling and User Adapted Interaction. Dordrecht, Holanda: Kluwer Academic Publishers, 1999.
MLA-Zitierstil (8. Ausg.)Não informado. User Modeling and User Adapted Interaction. Kluwer Academic Publishers, 1999.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.