%0 Journal Article
%A A. A. Stakun
%T Trace formulas for a singular differential operator with a turning point
%J Differencialʹnye uravneniâ
%D 1985
%P 636-646
%V 21
%N 4
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DE_1985_21_4_a10/
%G ru
%F DE_1985_21_4_a10