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@article{SF_1986__35_134878, author = {N. Sauer and J.E. Singleton}, title = {Evolution operators related to semi-groups of class {(A).}}, journal = {Semigroup forum}, pages = {317--336}, publisher = {mathdoc}, volume = {35}, year = {1986}, zbl = {0617.47030}, url = {http://geodesic.mathdoc.fr/item/SF_1986__35_134878/} }
N. Sauer; J.E. Singleton. Evolution operators related to semi-groups of class (A).. Semigroup forum, Tome 35 (1986), pp. 317-336. http://geodesic.mathdoc.fr/item/SF_1986__35_134878/