@article{RRACEFN_1984_1984_1_a29,
     author = {Guti\'errez Diez, J. M.},
     title = {Infragradientes y direcciones de decrecimiento.},
     journal = {Revista de la Real Academia de Ciencias Exactas, F{\'\i}sicas y Naturales },
     publisher = {mathdoc},
     volume = {78},
     number = {4},
     year = {1984},
     language = {es},
     url = {http://geodesic.mathdoc.fr/item/RRACEFN_1984_1984_1_a29/}
}