SpringerLink (Online service), Bauer, M., Gmytrasiewicz, P. J., & Vassileva, J. (2001). User Modeling 2001: 8th International Conference, UM 2001, Sonthofen, Germany, July 13-17, 2001. Proceedings (1st ed. 2001.). Springer Berlin Heidelberg : Imprint: Springer. https://doi.org/10.1007/3-540-44566-8
Παραπομπή σε μορφή Chicago (17η εκδ.)SpringerLink (Online service), Mathias Bauer, Piotr J. Gmytrasiewicz, και Julita Vassileva. User Modeling 2001: 8th International Conference, UM 2001, Sonthofen, Germany, July 13-17, 2001. Proceedings. 1st ed. 2001. Berlin, Heidelberg: Springer Berlin Heidelberg : Imprint: Springer, 2001. https://doi.org/10.1007/3-540-44566-8.
Παραπομπή σε μορφή MLA (8th εκδ.)SpringerLink (Online service), et al. User Modeling 2001: 8th International Conference, UM 2001, Sonthofen, Germany, July 13-17, 2001. Proceedings. 1st ed. 2001. Springer Berlin Heidelberg : Imprint: Springer, 2001. https://doi.org/10.1007/3-540-44566-8.
