@article{RRACEFN_1982_1982_1_a29,
     author = {Trillas, E.},
     title = {Sobre la "igualdad" de conjuntos borrosos.},
     journal = {Revista de la Real Academia de Ciencias Exactas, F{\'\i}sicas y Naturales},
     pages = {895-899},
     year = {1982},
     volume = {76},
     number = {4},
     language = {es},
     url = {http://geodesic.mathdoc.fr/item/RRACEFN_1982_1982_1_a29/}
}