%0 Journal Article %A Z.-Q. Xia %A M.-Z. Wang %A L.-W. Zhang %T Directional Derivative of a Class of Set-Valued Mappings and its Applications %J Journal of convex analysis %D 2003 %P 211-227 %V 10 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/JCA_2003_10_1_JCA_2003_10_1_a10/ %F JCA_2003_10_1_JCA_2003_10_1_a10