@article{BUMI_2011_9_4_2_a3,
     author = {Stagnaro, Ezio},
     title = {On a {Problem} {Posed} by {Luigi} {Campedelli}},
     journal = {Bollettino della Unione matematica italiana},
     pages = {237--243},
     publisher = {mathdoc},
     volume = {Ser. 9, 4},
     number = {2},
     year = {2011},
     zbl = {1230.14042},
     mrnumber = {2840604},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/BUMI_2011_9_4_2_a3/}
}