@misc{BUMI_1923_1_2_1_a7,
     title = {Corrispondenza},
     journal = {Bollettino della Unione matematica italiana},
     pages = {37--37},
     publisher = {mathdoc},
     volume = {Ser. 1, 2},
     number = {1},
     year = {1923},
     language = {it},
     url = {http://geodesic.mathdoc.fr/item/BUMI_1923_1_2_1_a7/}
}