%0 Journal Article
%A D. A. Krupskaya
%T The regularity of boundary points for second order degenerate elliptic equations
%J Differencialʹnye uravneniâ
%D 1977
%P 654-667
%V 13
%N 4
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DE_1977_13_4_a8/
%G ru
%F DE_1977_13_4_a8