%0 Journal Article
%A L. Cheng
%A Y. Zhou
%T Approximation by DC Functions and Application to Representation of a Normed Semigroup
%J Journal of convex analysis
%D 2014
%P 651-661
%V 21
%N 3
%I mathdoc
%U http://geodesic.mathdoc.fr/item/JCA_2014_21_3_JCA_2014_21_3_a2/
%F JCA_2014_21_3_JCA_2014_21_3_a2