@article{BUMI_1931_1_10_1_a3,
     author = {Simonetto, Edvige},
     title = {Sopra alcune variet\`a dello spazio hilbertiano},
     journal = {Bollettino della Unione matematica italiana},
     pages = {14--16},
     publisher = {mathdoc},
     volume = {Ser. 1, 10},
     number = {1},
     year = {1931},
     zbl = {0001.17002},
     language = {it},
     url = {http://geodesic.mathdoc.fr/item/BUMI_1931_1_10_1_a3/}
}