%0 Journal Article
%A G. V. Sherbina
%T On the question of a priori estimates for solutions of second-order equations
%J Differencialʹnye uravneniâ
%D 1979
%P 1840-1847
%V 15
%N 10
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DE_1979_15_10_a11/
%G ru
%F DE_1979_15_10_a11