%0 Journal Article
%A N. M. Ivochkina
%T Second-order differential equations with $d$-elliptic operators
%J Informatics and Automation
%D 1980
%P 40-56
%V 147
%I mathdoc
%U http://geodesic.mathdoc.fr/item/TRSPY_1980_147_a3/
%G ru
%F TRSPY_1980_147_a3