%0 Journal Article
%A E. Potoskuev
%T Reference Problems and Theorems for Computing of Areas of Triangles and Quadrangles
%J Matematičeskoe obrazovanie
%D 2009
%P 31-40
%V 50
%N 2
%I mathdoc
%U http://geodesic.mathdoc.fr/item/MO_2009_50_2_a4/
%G ru
%F MO_2009_50_2_a4