%0 Journal Article
%A O. A. Timoshin
%T The Best Approximation of a~Derivative and Analogs of Landau's Inequality in a~Half-Space
%J Trudy Matematicheskogo Instituta imeni V.A. Steklova
%D 1997
%P 387-399
%V 219
%I mathdoc
%U http://geodesic.mathdoc.fr/item/TM_1997_219_a24/
%G ru
%F TM_1997_219_a24