SpringerLink (Online service), Brusilovsky, P., Corbett, A., & de Rosis, F. (2003). User Modeling 2003: 9th International Conference, UM 2003, Johnstown, PA, USA, June 22-26, 2003, Proceedings (1st ed. 2003.). Springer Berlin Heidelberg : Imprint: Springer. https://doi.org/10.1007/3-540-44963-9
Παραπομπή σε μορφή Chicago (17η εκδ.)SpringerLink (Online service), Peter Brusilovsky, Albert Corbett, και Firoella de Rosis. User Modeling 2003: 9th International Conference, UM 2003, Johnstown, PA, USA, June 22-26, 2003, Proceedings. 1st ed. 2003. Berlin, Heidelberg: Springer Berlin Heidelberg : Imprint: Springer, 2003. https://doi.org/10.1007/3-540-44963-9.
Παραπομπή σε μορφή MLA (8th εκδ.)SpringerLink (Online service), et al. User Modeling 2003: 9th International Conference, UM 2003, Johnstown, PA, USA, June 22-26, 2003, Proceedings. 1st ed. 2003. Springer Berlin Heidelberg : Imprint: Springer, 2003. https://doi.org/10.1007/3-540-44963-9.
