Media type: E-Article Title: A Hille-Yosida theorem for weakly continuous semigroups Contributor: Cerrai, Sandra Published: Springer Science and Business Media LLC, 1994 Published in: Semigroup Forum, 49 (1994) 1, Seite 349-367 Language: English DOI: 10.1007/bf02573496 ISSN: 0037-1912; 1432-2137 Origination: Footnote: Access State: Open Access