%0 Journal Article
%A V. N. Poroshenko
%T Uniqueness of an algebraic polynomial of best approximation in the~$L_1$ metric
%J Matematičeskie zametki
%D 1981
%P 817-828
%V 29
%N 6
%I mathdoc
%U http://geodesic.mathdoc.fr/item/MZM_1981_29_6_a2/
%G ru
%F MZM_1981_29_6_a2