Zenon Chaczko Ryszard Klempous Jan Nikodem Michal Nikodem Methods of Sensors Localization in Wireless Sensor Networks. 145-152 2007 ECBS http://dx.doi.org/10.1109/ECBS.2007.48 conf/ecbs/2007 db/conf/ecbs/ecbs2007.html#ChaczkoKNN07