Donna Cox Volodymyr V. Kindratenko David Pointer IntelliBadge<sup>TM</sup>: Towards Providing Location-Aware Value-Added Services at Academic Conferences. 264-280 http://springerlink.metapress.com/openurl.asp?genre=article&issn=0302-9743&volume=2864&spage=264 2003 conf/huc/2003 Ubicomp db/conf/huc/ubicomp2003.html#CoxKP03