%0 Journal Article
%A Al. A. Privalov
%T On some properties and criterions of a parallelogram
%J Matematičeskoe obrazovanie
%D 2020
%P 36-45
%V 93
%N 1
%I mathdoc
%U http://geodesic.mathdoc.fr/item/MO_2020_93_1_a4/
%G ru
%F MO_2020_93_1_a4