Yurong Xu Yi Ouyang Zhengyi Le James Ford Fillia Makedon Mobile Anchor-Free Localization for Wireless Sensor Networks. 96-109 2007 conf/dcoss/2007 DCOSS http://dx.doi.org/10.1007/978-3-540-73090-3_7 db/conf/dcoss/dcoss2007.html#XuOLFM07