%0 Journal Article
%A A. L. Teptin
%T Conditions of validity of {\v C}aplygin's theorem for elliptic difference equations
%J Differencialʹnye uravneniâ
%D 1967
%P 1009-1021
%V 3
%N 6
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DE_1967_3_6_a13/
%G ru
%F DE_1967_3_6_a13