%0 Journal Article %A M. Jung %T Multiplicative perturbations in semigroup theory with the (Z)-condition. %J Semigroup forum %D 1996 %P 197-212 %V 52 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/SF_1996__52_3_135448/ %F SF_1996__52_3_135448