@article{STO_1983_1983_1_a12,
     author = {Yager, Ronald R.},
     title = {Sobre la aditividad de las cardinalidades de conjuntos difusos de tipo {II.}},
     journal = {Stochastica},
     pages = {243-248},
     publisher = {mathdoc},
     volume = {7},
     number = {3},
     year = {1983},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/STO_1983_1983_1_a12/}
}