%0 Journal Article %A M. Ishikawa %T Analyticity of absorption semigroups. %J Semigroup forum %D 1995 %P 307-316 %V 50 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/SF_1995__50_3_135389/ %F SF_1995__50_3_135389