@article{RRACEFN_1987_1987_1_a26,
     author = {Peralta, Javier},
     title = {Derivadas reducibles de grado superior.},
     journal = {Revista de la Real Academia de Ciencias Exactas, F{\'\i}sicas y Naturales },
     pages = {533-546},
     publisher = {mathdoc},
     volume = {81},
     number = {3},
     year = {1987},
     language = {es},
     url = {http://geodesic.mathdoc.fr/item/RRACEFN_1987_1987_1_a26/}
}