%0 Journal Article
%A V. A. Sadovnichy
%A V. V. Dubrovskii
%T Some properties of operators with a discrete spectrum
%J Differencialʹnye uravneniâ
%D 1979
%P 1206-1211
%V 15
%N 7
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DE_1979_15_7_a4/
%G ru
%F DE_1979_15_7_a4