%0 Journal Article
%A A. Zarei
%A M. Ghodsi 
%T A Practical Approach for Planar Visibility Maintenance
%J Journal for geometry and graphics
%D 2009
%P 75-9
%V 13
%N 1
%I mathdoc
%U http://geodesic.mathdoc.fr/item/JGG_2009_13_1_JGG_2009_13_1_a6/
%F JGG_2009_13_1_JGG_2009_13_1_a6