%0 Journal Article
%A A. L. Kuz'mina
%T Construction of a~polynomial for best approximation of a~derivative function in~$L_2[-1,1]$
%J Konstruktivnaya Teoriya Funktsii i Funktsional'nyi Analiz
%D 1981
%P 38-43
%I mathdoc
%U http://geodesic.mathdoc.fr/item/KUKTF_1981_a4/
%G ru
%F KUKTF_1981_a4