TY - JOUR AU - P. Q. Khanh AU - N. D. Tuan TI - Optimality Conditions using Approximations for Nonsmooth Vector Optimization Problems under General Inequality Constraints JO - Journal of convex analysis PY - 2009 SP - 169 EP - 186 VL - 16 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/JCA_2009_16_1_JCA_2009_16_1_a8/ ID - JCA_2009_16_1_JCA_2009_16_1_a8 ER -