@article{GAMA_1978_1978_1_a0,
     author = {Aguado-Mu\~noz Prada, R.},
     title = {M\'etodos gr\'aficos para el estudio de conjuntos infinitos.},
     journal = {Gaceta matem\'atica},
     pages = {3-17},
     publisher = {mathdoc},
     volume = {30},
     number = {1-2},
     year = {1978},
     language = {es},
     url = {http://geodesic.mathdoc.fr/item/GAMA_1978_1978_1_a0/}
}