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@article{MAN_1969__182_161853, author = {M. HASEGAWA}, title = {On a {Property} of the {Infinitesimal} {Generators} of {Semigroups} of {Linear} {Operators.}}, journal = {Mathematische Annalen}, pages = {121--126}, publisher = {mathdoc}, volume = {182}, year = {1969}, zbl = {0175.43601}, url = {http://geodesic.mathdoc.fr/item/MAN_1969__182_161853/} }
M. HASEGAWA. On a Property of the Infinitesimal Generators of Semigroups of Linear Operators.. Mathematische Annalen, Tome 182 (1969), pp. 121-126. http://geodesic.mathdoc.fr/item/MAN_1969__182_161853/