%0 Journal Article %A F. Oustry %T Vertical Developments of a Convex Function %J Journal of convex analysis %D 1998 %P 153-17 %V 5 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/JCA_1998_5_1_a11/ %F JCA_1998_5_1_a11