%0 Journal Article
%A B. V. Verbitskii
%T On~a~global property of a~matrix-valued function of one variable
%J Sbornik. Mathematics
%D 1973
%P 53-65
%V 20
%N 1
%I mathdoc
%U http://geodesic.mathdoc.fr/item/SM_1973_20_1_a2/
%G en
%F SM_1973_20_1_a2