Determining the Visibility of a Planar Set of Line Segments in O(n log log n) Time.

Frank Dévai Marina L. Gavrilova Determining the Visibility of a Planar Set of Line Segments in O(n log log n) Time. 51-62 2007 conf/iccsa/2007-2 ICCSA (2) http://dx.doi.org/10.1007/978-3-540-74477-1_5 db/conf/iccsa/iccsa2007-2.html#DevaiG07