@article{GAMA_1967_1967_1_a2,
     author = {Machado Cardoso, Jayme},
     title = {Interse\c{c}ao de esfera com cilindro.},
     journal = {Gaceta matem\'atica},
     pages = {12-13},
     publisher = {mathdoc},
     volume = {19},
     number = {1-2},
     year = {1967},
     url = {http://geodesic.mathdoc.fr/item/GAMA_1967_1967_1_a2/}
}