%0 Journal Article
%A A. P. Bulanov
%T On the order of approximation of convex functions by rational functions
%J Izvestiya. Mathematics 
%D 1969
%P 1067-1080
%V 3
%N 5
%I mathdoc
%U http://geodesic.mathdoc.fr/item/IM2_1969_3_5_a7/
%G en
%F IM2_1969_3_5_a7