%0 Journal Article
%A M. V. Fedoryuk
%T The Sturm-Liouville problem with regular singular points.~I
%J Differencialʹnye uravneniâ
%D 1982
%P 2166-2173
%V 18
%N 12
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DE_1982_18_12_a7/
%G ru
%F DE_1982_18_12_a7