%0 Journal Article
%A N. B. Kerimov
%T On the necessary conditions for the basis property
%J Differencialʹnye uravneniâ
%D 1990
%P 943-953
%V 26
%N 6
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DE_1990_26_6_a3/
%G ru
%F DE_1990_26_6_a3