%0 Journal Article
%A V. G. Limanskii
%T Comparison theorems for some differential operator equations
%J Doklady Akademii Nauk
%D 1971
%P 1030-1033
%V 200
%N 5
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DAN_1971_200_5_a5/
%G ru
%F DAN_1971_200_5_a5