%0 Journal Article
%A W. W. Breckner
%A G. Kassay
%T A Systematization of Convexity Concepts for Sets and Functions
%J Journal of convex analysis
%D 1997
%P 109-128
%V 4
%N 1
%I mathdoc
%U http://geodesic.mathdoc.fr/item/JCA_1997_4_1_a4/
%F JCA_1997_4_1_a4