"Cellonics Demonstrates the Use of Ultra Wideband," Mobile CommerceNet (online article), March 25, 2002.
"Characterization of UWB Propagation from 2 to 8 GHz in a Residential Environment," Intel Corporation, Intel Research Labs, online at http://www.intel.com/technology/comms/uwb/download/Channel_JSAC02_sub_LR.pdf
R. Fleming and C. Kushner, "CMOS Ultra-Wideband Localizers for Networking in the Extreme," Aether Wire & Location, Inc., online at http://www.aetherwire.com/Aether_Wire/CMOS_UWB_Localizers_for_NETEX.pdf, September 2001.
J. Foerster, E. Green, S. Somayazulu, and D. Leeper, "Ultra-Wideband Technology for Short or Medium-Range Wireless Communications," Intel Technology Journal, 2nd quarter, online at http://developer.intel.com/technology/itj/q22001/pdf/art_4.pdf, 2001.
Freedonia Group, "Biometrics & Electronic Access Control Systems: Market Size, Market Share and Demand Forecast," November 2001.
"IEEE Flooded with Short-Range Wireless Proposals," Communications Design, February 6, 2003.
P. Mannion, "Ultrawideband Radio Set to Redefine Wireless Signaling," EE Times, September 11, 2002.
Venture Development Corporation. Global Markets and Applications for Radio Frequency Identification and Contactless Smartcard Systems, 4th ed., vol. 1, December 2002.