%0 Journal Article
%A V. Balestro
%A E. Shonoda
%T On a Cosine Function Defined for Smooth Normed Spaces
%J Journal of convex analysis
%D 2018
%P 21-39
%V 25
%N 1
%U http://geodesic.mathdoc.fr/item/JCA_2018_25_1_JCA_2018_25_1_a1/
%F JCA_2018_25_1_JCA_2018_25_1_a1