%0 Journal Article
%A H. Ts. Hakopyan
%T About convexity of polygons
%J Proceedings of the Yerevan State University. Physical and mathematical sciences
%D 2007
%P 20-24
%N 3
%I mathdoc
%U http://geodesic.mathdoc.fr/item/UZERU_2007_3_a2/
%G ru
%F UZERU_2007_3_a2