@article{GAMA_1966_1966_1_a8,
     author = {Barsotti, Leo and  Machado Cardoso, Jayme},
     title = {Hipopeda cil{\'\i}ndrica.},
     journal = {Gaceta matem\'atica},
     pages = {197-202},
     publisher = {mathdoc},
     volume = {18},
     number = {7-8},
     year = {1966},
     url = {http://geodesic.mathdoc.fr/item/GAMA_1966_1966_1_a8/}
}