%0 Journal Article
%A A. P. Buslaev
%A G. G. Magaril-Il'yaev
%A V. M. Tikhomirov
%T Existence of extremal functions in inequalities for derivatives
%J Matematičeskie zametki
%D 1982
%P 823-834
%V 32
%N 6
%I mathdoc
%U http://geodesic.mathdoc.fr/item/MZM_1982_32_6_a7/
%G ru
%F MZM_1982_32_6_a7