@article{MSC_1994_1994_1_a2,
     author = {Delgado, Miguel and Verdegay, Jos\'e Luis and Vila, M. Amparo},
     title = {N\'umeros difusos, definiciones y propiedades.},
     journal = {Mathware & soft computing},
     pages = {31-43},
     publisher = {mathdoc},
     volume = {1},
     number = {1},
     year = {1994},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/MSC_1994_1994_1_a2/}
}