TY - JOUR AU - M. Degiovanni AU - R. Lucchetti AU - N. Ribarska TI - Critical Point Theory for Vector Valued Functions JO - Journal of convex analysis PY - 2002 SP - 415 EP - 428 VL - 9 IS - 2 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/JCA_2002_9_2_JCA_2002_9_2_a5/ ID - JCA_2002_9_2_JCA_2002_9_2_a5 ER -