Diana K. Smetters Dirk Balfanz Glenn Durfee Trevor F. Smith Kyung-Hee Lee Instant Matchmaking: Simple and Secure Integrated Ubiquitous Computing Environments. 477-494 2006 conf/huc/2006 Ubicomp http://dx.doi.org/10.1007/11853565_28 db/conf/huc/ubicomp2006.html#SmettersBDSL06