@article{SORT_2006_2006_1_a4,
     author = {Costa, Alex and Satorra, Albert and Ventura, Eva},
     title = {Mejora de la estimaci\'on en \'areas peque\~nas mediante combinaci\'on de encuestas: nuevas perspectivas en estad{\'\i}stica regional.},
     journal = {Sort},
     pages = {101-122},
     publisher = {mathdoc},
     volume = {30},
     number = {1},
     year = {2006},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/SORT_2006_2006_1_a4/}
}