%0 Journal Article
%A A. Khatamov
%T On~rational approximations of functions with a~convex derivative
%J Sbornik. Mathematics
%D 1975
%P 239-250
%V 27
%N 2
%I mathdoc
%U http://geodesic.mathdoc.fr/item/SM_1975_27_2_a5/
%G en
%F SM_1975_27_2_a5