%0 Journal Article
%A S. A. Ivanov
%T Best approximations by rational vector-valued functions in Hardy spaces
%J Sbornik. Mathematics
%D 1988
%P 137-145
%V 61
%N 1
%I mathdoc
%U http://geodesic.mathdoc.fr/item/SM_1988_61_1_a9/
%G en
%F SM_1988_61_1_a9