@article{SORT_2008_2008_1_a9,
     author = {Herrador, Montserrat and  Morales, Domingo and  Esteban, Mar{\'\i}a Dolores and  S\'anchez, \'Angel and  Santamar{\'\i}a, Laureano and  Marhuenda, Yolanda and  P\'erez, Agust{\'\i}n},
     title = {Sampling design variance estimation of small area estimators in the {Spanish} {Labour} {Force} survey.},
     journal = {Sort},
     pages = {177-198},
     publisher = {mathdoc},
     volume = {32},
     number = {2},
     year = {2008},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/SORT_2008_2008_1_a9/}
}