1. M. Goldstein, D. Chincholle, The Finger-Joint-Gesture wearable keypad, The INTERACT'99 Second Workshop on Human Computer Interaction with Mobile Devices, August 21, 1999, Edinburgh, available at: http://www.dcs.gla.ac.uk/mobile99/ (February 2002).
2. Personal Technologies;Goldstein,2000
3. S. Lehto, Modelling the structure and function of the Human User, Wireless World Research Forum, Book of Visions, Version 1.0.
4. T. Dorsch, U. Fiebig, P. Ballon, Scenario-based Service Development Methodology, Wireless World Research Forum, Book of Visions, Version 1.0.
5. K. Crisler, G. Romano, A. Dey, User-Centred Requirements for Contextually Aware Systems, Wireless World Research Forum, Book of Visions, Version 1.0.