%0 Journal Article
%A P. G. Grinevich
%T Vector rank of commuting matrix differential operators. Proof of S.\,P.~Novikov's criterion
%J Izvestiya. Mathematics 
%D 1987
%P 445-465
%V 28
%N 3
%I mathdoc
%U http://geodesic.mathdoc.fr/item/IM2_1987_28_3_a1/
%G en
%F IM2_1987_28_3_a1