%0 Journal Article
%A S. Ya. Al'per
%T On the best mean first-degree approximation of analytic functions on circles
%J Doklady Akademii Nauk
%D 1963
%P 503-506
%V 153
%N 3
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DAN_1963_153_3_a0/
%G ru
%F DAN_1963_153_3_a0