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@article{SF_1994__49_2_135359, author = {S. Cerrai}, title = {A {Hille-Yosida} theorem for weakly continuous semigroups.}, journal = {Semigroup forum}, pages = {349--368}, publisher = {mathdoc}, volume = {49}, number = {2}, year = {1994}, zbl = {0817.47048}, url = {http://geodesic.mathdoc.fr/item/SF_1994__49_2_135359/} }
S. Cerrai. A Hille-Yosida theorem for weakly continuous semigroups.. Semigroup forum, Tome 49 (1994) no. 2, pp. 349-368. http://geodesic.mathdoc.fr/item/SF_1994__49_2_135359/