@article{QUE_1998_1998_1_a6,
     author = {Prieto Mart{\'\i}nez, Juan Jos\'e},
     title = {{\textquestiondown}Cu\'antos clusters hay en una poblaci\'on?},
     journal = {Q\"uestii\'o},
     pages = {69-82},
     publisher = {mathdoc},
     volume = {22},
     number = {1},
     year = {1998},
     language = {es},
     url = {http://geodesic.mathdoc.fr/item/QUE_1998_1998_1_a6/}
}