%0 Journal Article
%A L. I. Kamynin
%A B. N. Khimchenko
%T A theorem on an infinite derivative for a second-order parabolic equation with a nonnegative characteristic form
%J Differencialʹnye uravneniâ
%D 1984
%P 2103-2112
%V 20
%N 12
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DE_1984_20_12_a10/
%G ru
%F DE_1984_20_12_a10