%0 Journal Article
%A N. M. Krukovskii
%T The $m$-fold completeness of the system of generalized eigen- and associated functions of a nonselfadjoint elliptic operator, and the membership of the classical eigen- and associated functions of the operator in the class $W_2^1$
%J Differencialʹnye uravneniâ
%D 1976
%P 1832-1841
%V 12
%N 10
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DE_1976_12_10_a10/
%G ru
%F DE_1976_12_10_a10