%0 Journal Article
%A Ditzian, Z.
%A Prymak, A.
%T Approximation by Dilated Averages and K-Functionals
%J Canadian journal of mathematics
%D 2010
%P 737-757
%V 62
%N 4
%U http://geodesic.mathdoc.fr/articles/10.4153/CJM-2010-040-1/
%R 10.4153/CJM-2010-040-1
%F 10_4153_CJM_2010_040_1