2002
Flexi-Modal and Multi-Machine User Interfaces.
Proceedings of the 4th IEEE International Conference on Multimodal Interfaces (ICMI 2002), 2002

Interacting at a distance: measuring the performance of laser pointers and other devices.
Proceedings of the CHI 2002 Conference on Human Factors in Computing Systems: Changing our World, 2002

2001
Interacting at a Distance Using Semantic Snarfing.
Proceedings of the Ubicomp 2001: Ubiquitous Computing, 2001