@misc{BUMI_1922_1_1_1_a6,
     title = {Corrispondenza},
     journal = {Bollettino della Unione matematica italiana},
     pages = {33--33},
     publisher = {mathdoc},
     volume = {Ser. 1, 1},
     number = {1},
     year = {1922},
     language = {it},
     url = {http://geodesic.mathdoc.fr/item/BUMI_1922_1_1_1_a6/}
}