TY - JOUR AU - Jokl, Luděk TI - An application of the Hahn-Banach theorem in convex analysis JO - Commentationes Mathematicae Universitatis Carolinae PY - 1981 SP - 799 EP - 807 VL - 22 IS - 4 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/CMUC_1981__22_4_a14/ LA - en ID - CMUC_1981__22_4_a14 ER -