Bastian Katz Marco Gaertler Dorothea Wagner Maximum Rigid Components as Means for Direction-Based Localization in Sensor Networks. 330-341 2007 conf/sofsem/2007 SOFSEM (1) http://dx.doi.org/10.1007/978-3-540-69507-3_27 db/conf/sofsem/sofsem2007.html#KatzGW07