Local PTAS for Independent Set and Vertex Cover in Location Aware Unit Disk Graphs.

Andreas Wiese Evangelos Kranakis Local PTAS for Independent Set and Vertex Cover in Location Aware Unit Disk Graphs. 415-431 2008 DCOSS http://dx.doi.org/10.1007/978-3-540-69170-9_28 conf/dcoss/2008 db/conf/dcoss/dcoss2008.html#WieseK08