@article{FORUM_1994__6_3_141734,
     author = {Karl-Hermann Neeb},
     title = {Contraction semigroups and representations.},
     journal = {Forum mathematicum},
     pages = {233--270},
     publisher = {mathdoc},
     volume = {6},
     number = {3},
     year = {1994},
     zbl = {0805.22005},
     url = {http://geodesic.mathdoc.fr/item/FORUM_1994__6_3_141734/}
}