- CHI Conference Companion, page 77-78. ACM, (1996)
- UbiMob, page 207. ACM, (2005)
- Interacting with Computers 11(3):299-322 (1999)
- Mensch & Computer, Oldenbourg Verlag, (2010)
- Int. J. Hum. Comput. Interaction 2(3):203-229 (1990)
- Int. J. Hum. Comput. Interaction 7(2):105-121 (1995)
- Int. J. Hum. Comput. Interaction 26(8):786-824 (2010)
- EICS, page 231-236. ACM, (2009)
- EICS, page 29-34. ACM, (2010)
- TAMODIA, volume 5963 of Lecture Notes in Computer Science, page 117-130. Springer, (2009)
- INTERACT 2, volume 5727 of Lecture Notes in Computer Science, page 959-960. Springer, (2009)
- HCI 1, volume 5610 of Lecture Notes in Computer Science, page 339-348. Springer, (2009)
- HCI 2, volume 5611 of Lecture Notes in Computer Science, page 664-673. Springer, (2009)
- IUI '07: Proceedings of the 12th international conference on Intelligent user interfaces, page 102--111. New York, NY, USA, ACM Press, (2007)
- IUI, page 102-111. ACM, (2007)
- TAMODIA/HCSE, volume 5247 of Lecture Notes in Computer Science, page 14-28. Springer, (2008)
- IHM, volume 133 of ACM International Conference Proceeding Series, page 287-288. ACM, (2006)
- IHM, volume 51 of ACM International Conference Proceeding Series, page 24-31. ACM, (2003)
- IHM, page 61-68. ACM, (2004)
- IHM, volume 32 of ACM International Conference Proceeding Series, page 243-246. ACM, (2002)


author