%0 Journal Article %A Karl-Hermann Neeb %T Contraction semigroups and representations. %J Forum mathematicum %D 1994 %P 233-270 %V 6 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/FORUM_1994__6_3_141734/ %F FORUM_1994__6_3_141734