@article{SF_1991__43_3_135124,
     author = {J.M.A.M. van Neerven},
     title = {On the topology induced by the adjoint of a semigroup of operators.},
     journal = {Semigroup forum},
     pages = {378--394},
     publisher = {mathdoc},
     volume = {43},
     number = {3},
     year = {1991},
     zbl = {0745.47028},
     url = {http://geodesic.mathdoc.fr/item/SF_1991__43_3_135124/}
}