@article{BUMI_2003_8_6A_1_a8,
     author = {Ribenboim, Paulo},
     title = {1093},
     journal = {Bollettino della Unione matematica italiana},
     pages = {165--182},
     year = {2003},
     volume = {Ser. 8, 6A},
     number = {1},
     zbl = {1194.11004},
     mrnumber = {MR1982352},
     language = {it},
     url = {http://geodesic.mathdoc.fr/item/BUMI_2003_8_6A_1_a8/}
}