@inproceedings{percom07,
 author = {Gregor Broll and Sven Siorpaes and Enrico Rukzio and Massimo Paolucci and John Hamard and Matthias Wagner and Albrecht Schmidt},
 title = {Supporting Mobile Service Usage through Physical Mobile Interaction},
 booktitle = {PERCOM '07: Proceedings of the Fifth IEEE International Conference on Pervasive Computing and Communications},
 year = {2007},
 isbn = {0-7695-2787-6},
 pages = {262--271},
 doi = {http://dx.doi.org/10.1109/PERCOM.2007.35},
 publisher = {IEEE Computer Society},
 address = {Washington, DC, USA},
 }