%0 Journal Article
%A M. H. Zakhar-Itkin
%T Investigation of a differential equation of Sturm--Liouville type
%J Doklady Akademii Nauk
%D 1964
%P 1264-1267
%V 158
%N 6
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DAN_1964_158_6_a5/
%G ru
%F DAN_1964_158_6_a5