Kavitha Muthukrishnan Maria Eva Lijding Paul J. M. Havinga Towards Smart Surroundings: Enabling Techniques and Technologies for Localization. 350-362 2005 conf/loca/2005 LoCA http://dx.doi.org/10.1007/11426646_32 db/conf/loca/loca2005.html#MuthukrishnanLH05