TY - JOUR AU - Poliquin, R. A. TI - A Characterization of Proximal Subgradient Set-Valued Mappings JO - Canadian mathematical bulletin PY - 1993 SP - 116 EP - 122 VL - 36 IS - 1 UR - http://geodesic.mathdoc.fr/articles/10.4153/CMB-1993-017-4/ DO - 10.4153/CMB-1993-017-4 ID - 10_4153_CMB_1993_017_4 ER -