@article{STO_1984_1984_1_a2,
     author = {Lowen, Robert},
     title = {Sobre los fundamentos de los conjuntos difusos.},
     journal = {Stochastica},
     pages = {157-169},
     publisher = {mathdoc},
     volume = {8},
     number = {2},
     year = {1984},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/STO_1984_1984_1_a2/}
}