@article{CM_1970__22_1_104_0, author = {Westphal, U.}, title = {Ein Kalk\"ul f\"ur gebrochene Potenzen infinitesimaler Erzeuger von Halbgruppen und Gruppen von Operatoren. Teil II : Gruppenerzeuger}, journal = {Compositio Mathematica}, volume = {22}, year = {1970}, pages = {104-136}, mrnumber = {261396}, zbl = {0194.15402}, language = {de}, url = {http://dml.mathdoc.fr/item/CM_1970__22_1_104_0} }
Westphal, U. Ein Kalkül für gebrochene Potenzen infinitesimaler Erzeuger von Halbgruppen und Gruppen von Operatoren. Teil II : Gruppenerzeuger. Compositio Mathematica, Tome 22 (1970) pp. 104-136. http://gdmltest.u-ga.fr/item/CM_1970__22_1_104_0/
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