%0 Journal Article
%A S. N. Kudryavtsev
%T Approximating one class of finitely differentiable functions by another
%J Izvestiya. Mathematics 
%D 1997
%P 347-362
%V 61
%N 2
%I mathdoc
%U http://geodesic.mathdoc.fr/item/IM2_1997_61_2_a5/
%G en
%F IM2_1997_61_2_a5