References

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Infrared Data Association. IrDA Information. http://www.irda.org/.

2

J. Baus, A. Butz, and A. Krüger. One way interaction: interactivity over unidirectional links. In Proceedings of I3 workshop on Adaptive Design of Interactive Multimedia Presentations for Mobile Users, Sunday, March 7, 1999. www.i3net.org, 1999.

3

Ericsson, IBM, Intel, Nokia, and Toshiba. Bluetooth mobile wireless initiative. http://www.bluetooth.com, 1998.

4

Fraunhofer Institut für Graphische Datenverarbeitung Rostock. Projekt Mobis. http://www.egd.igd.fhg.de/.

5

GMD Forschungszentrum für Informationstechnik. Nomadic Information Systems. http://freak.gmd.de/NIS/nis.html.

6

Roy Want, Andy Hopper, Veronica Falcao, and Jonathon Gibbons. The active badge location system. ACM Transactions on Information Systems, 10(1):91-102, January 1992.

7

Roy Want, Bill Schilit, Norman Adams, Rich Gold, Karin Petersen, David Goldberg, John Ellis, and Mark Weiser. An overview of the ParcTab ubiquitous computing experiment. IEEE Personal Communications, pages 28-43, December 1995.