%0 Journal Article
%A B. R. Frenkin
%T A Geometric Approach to the Indication of Rectangular Tria
%J Matematičeskoe obrazovanie
%D 2007
%P 61-62
%V 42
%N 2
%I mathdoc
%U http://geodesic.mathdoc.fr/item/MO_2007_42_2_a7/
%G ru
%F MO_2007_42_2_a7