%0 Journal Article
%A I. I. Golichev
%T The existence of a point of regularity and the spectrum of a second order nonselfadjoint differential operator
%J Differencialʹnye uravneniâ
%D 1971
%P 2051-2057
%V 7
%N 11
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DE_1971_7_11_a13/
%G ru
%F DE_1971_7_11_a13