%0 Journal Article
%A V. A. Sadovnichy
%T On the trace of the difference of two ordinary differential operators of higher orders
%J Differencialʹnye uravneniâ
%D 1966
%P 1611-1624
%V 2
%N 12
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DE_1966_2_12_a6/
%G ru
%F DE_1966_2_12_a6