%0 Journal Article %A Castillo, Kenier %A Garza, Luis %A Marcellán, Francisco %T Laurent polynomial perturbations of linear functionals. An inverse problem %J Electronic transactions on numerical analysis %D 2010 %V 36 %I mathdoc %U http://geodesic.mathdoc.fr/item/ETNA_2010__36__a6/ %G en %F ETNA_2010__36__a6