%0 Journal Article
%A V. F. Babenko
%T Nonsymmetric extremal problems in approximation theory
%J Doklady Akademii Nauk
%D 1983
%P 521-524
%V 269
%N 3
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DAN_1983_269_3_a0/
%G ru
%F DAN_1983_269_3_a0