@article{TE_1988_1988_1_a5,
     author = {Velilla Cerd\'an, Santiago},
     title = {Una caracterizaci\'on aproximada de casos influyentes en multicolinealidad.},
     journal = {Trabajos de estad{\'\i}stica},
     pages = {81-96},
     publisher = {mathdoc},
     volume = {3},
     number = {1},
     year = {1988},
     language = {es},
     url = {http://geodesic.mathdoc.fr/item/TE_1988_1988_1_a5/}
}