%0 Journal Article
%A M. V. Fedoryuk
%T Spectrum of one-dimensional singular nonselfadjoint differential operators
%J Trudy Matematicheskogo Instituta imeni V.A. Steklova
%D 1965
%V 20
%N 5
%I mathdoc
%U http://geodesic.mathdoc.fr/item/RM_1965_20_5_a25/
%G ru
%F RM_1965_20_5_a25