%0 Journal Article
%A V. F. Babenko
%A N. V. Parfinovich
%T Exact Values of Best Approximations for Classes of Periodic Functions by Splines of Deficiency~2
%J Matematičeskie zametki
%D 2009
%P 538-551
%V 85
%N 4
%I mathdoc
%U http://geodesic.mathdoc.fr/item/MZM_2009_85_4_a4/
%G ru
%F MZM_2009_85_4_a4