%0 Journal Article
%T On the Problem of R. De Vore
%J Canadian mathematical bulletin
%D 1974
%P 39-44
%V 17
%N 1
%U http://geodesic.mathdoc.fr/articles/10.4153/CMB-1974-007-8/
%R 10.4153/CMB-1974-007-8
%F 10_4153_CMB_1974_007_8