@article{BSMF_1968__96__265_0,
     author = {Shimakura, N.},
     title = {Sur les domaines des puissances fractionnaires d'op\'erateurs},
     journal = {Bulletin de la Soci\'et\'e Math\'ematique de France},
     pages = {265--288},
     publisher = {Soci\'et\'e math\'ematique de France},
     volume = {96},
     year = {1968},
     doi = {10.24033/bsmf.1669},
     mrnumber = {39 #822},
     zbl = {0174.44402},
     language = {fr},
     url = {http://archive.numdam.org/articles/10.24033/bsmf.1669/}
}