%0 Journal Article
%A A. V. Kuzhel'
%T On the spectrum of a regular quasi-differential operator
%J Doklady Akademii Nauk
%D 1964
%P 731-733
%V 156
%N 4
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DAN_1964_156_4_a1/
%G ru
%F DAN_1964_156_4_a1