@article{BUMI_1934_1_13_1_a3,
     author = {Ducci, Enrico},
     title = {Sui lati dei poligoni regolari},
     journal = {Bollettino della Unione matematica italiana},
     pages = {17--18},
     publisher = {mathdoc},
     volume = {Ser. 1, 13},
     number = {1},
     year = {1934},
     zbl = {0008.21807},
     language = {it},
     url = {http://geodesic.mathdoc.fr/item/BUMI_1934_1_13_1_a3/}
}