%0 Journal Article
%A L. I. Kamynin
%A B. N. Khimchenko
%T A theorem on the interior derivative for an elliptic-parabolic equation of Kolmogorov type
%J Differencialʹnye uravneniâ
%D 1986
%P 1400-1409
%V 22
%N 8
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DE_1986_22_8_a11/
%G ru
%F DE_1986_22_8_a11