@article{GAMA_1977_1977_1_a6,
     author = {P\'erez Castro, Federico},
     title = {Solubilidad en enteros no nulos, mediante formas cuadr\'aticas binarias, de ecuaciones pitag\'oricas de grado superior.},
     journal = {Gaceta matem\'atica},
     pages = {61-78},
     publisher = {mathdoc},
     volume = {29},
     number = {3-4},
     year = {1977},
     language = {es},
     url = {http://geodesic.mathdoc.fr/item/GAMA_1977_1977_1_a6/}
}