%0 Journal Article
%A I. M. Glazman
%T Oscillation theorems for differential equations of higher orders and the spectrum of the respective differential operators
%J Doklady Akademii Nauk
%D 1958
%P 423-426
%V 118
%N 3
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DAN_1958_118_3_a0/
%G ru
%F DAN_1958_118_3_a0