@article{TE_1991_1991_1_a9,
     author = {Gir\'on, Francisco Javier},
     title = {Un modelo general para determinar la edad de un sistema de soleras.},
     journal = {Trabajos de estad{\'\i}stica},
     pages = {3-10},
     publisher = {mathdoc},
     volume = {6},
     number = {2},
     year = {1991},
     language = {es},
     url = {http://geodesic.mathdoc.fr/item/TE_1991_1991_1_a9/}
}