TY  - JOUR
AU  - W. W. Breckner
AU  - G. Kassay
TI  - A Systematization of Convexity Concepts for Sets and Functions
JO  - Journal of convex analysis
PY  - 1997
SP  - 109
EP  - 128
VL  - 4
IS  - 1
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/JCA_1997_4_1_a4/
ID  - JCA_1997_4_1_a4
ER  -