SpringerLink (Online service), Krumm, J., Abowd, G. D., Seneviratne, A., & Strang, T. (2007). UbiComp 2007: Ubiquitous Computing: 9th International Conference, UbiComp 2007, Innsbruck, Austria, September 16-19, 2007. Proceedings. Springer Berlin Heidelberg.
Παραπομπή σε μορφή Chicago (17η εκδ.)SpringerLink (Online service), John Krumm, Gregory D. Abowd, Aruna Seneviratne, και Thomas Strang. UbiComp 2007: Ubiquitous Computing: 9th International Conference, UbiComp 2007, Innsbruck, Austria, September 16-19, 2007. Proceedings. Berlin, Heidelberg: Springer Berlin Heidelberg, 2007.
Παραπομπή σε μορφή MLA (8th εκδ.)SpringerLink (Online service), et al. UbiComp 2007: Ubiquitous Computing: 9th International Conference, UbiComp 2007, Innsbruck, Austria, September 16-19, 2007. Proceedings. Springer Berlin Heidelberg, 2007.
