TY - JOUR AU - M. Jung TI - Multiplicative perturbations in semigroup theory with the (Z)-condition. JO - Semigroup forum PY - 1996 SP - 197 EP - 212 VL - 52 IS - 3 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/SF_1996__52_3_135448/ ID - SF_1996__52_3_135448 ER -