TY - JOUR AU - P.K. Lin TI - Extremal properties of contraction semigroups on c0 . JO - Semigroup forum PY - 1996 SP - 208 EP - 211 VL - 53 IS - 2 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/SF_1996__53_2_135484/ ID - SF_1996__53_2_135484 ER -