%0 Journal Article
%A I. M. Spitkovsky
%T On block operators and related questions in the theory of factorization of matrix-valued functions
%J Doklady Akademii Nauk
%D 1980
%P 816-820
%V 254
%N 4
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DAN_1980_254_4_a11/
%G ru
%F DAN_1980_254_4_a11