%0 Journal Article
%A A. G. Kuz'min
%T Second-order equations with an elliptic operator with respect to the space variables
%J Differencialʹnye uravneniâ
%D 1987
%P 102-113
%V 23
%N 1
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DE_1987_23_1_a10/
%G ru
%F DE_1987_23_1_a10