Efficient Visibility Maintenance of a Moving Segment Observer inside a Simple Polygon.

AmirAli Khosravi Alireza Zarei Mohammad Ghodsi Efficient Visibility Maintenance of a Moving Segment Observer inside a Simple Polygon. 249-252 2007 conf/cccg/2007 CCCG db/conf/cccg/cccg2007.html#KhosraviZG07