@article{ASNSP_1967_3_21_2_137_0,
     author = {Larsson, Eric},
     title = {Generalized distribution semi-groups of bounded linear operators},
     journal = {Annali della Scuola Normale Superiore di Pisa - Scienze Fisiche e Matematiche},
     pages = {137--159},
     publisher = {Scuola normale superiore},
     volume = {Ser. 3, 21},
     number = {2},
     year = {1967},
     mrnumber = {232246},
     zbl = {0156.15401},
     language = {en},
     url = {http://www.numdam.org/item/ASNSP_1967_3_21_2_137_0/}
}