%0 Journal Article
%A N. P. Korneichuk
%T Widths in $L_p$ of classes of continuous and of differentiable functions, and optimal methods of coding and recovering functions and their derivatives
%J Izvestiya. Mathematics 
%D 1982
%P 227-247
%V 18
%N 2
%I mathdoc
%U http://geodesic.mathdoc.fr/item/IM2_1982_18_2_a1/
%G en
%F IM2_1982_18_2_a1