%0 Journal Article
%A A. I. Perov
%T On a higher-dimensional linear differential equation of second order
%J Doklady Akademii Nauk
%D 1964
%P 755-758
%V 159
%N 4
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DAN_1964_159_4_a14/
%G ru
%F DAN_1964_159_4_a14