%0 Journal Article %A Badii, Maurizio %T Existence and uniqueness of periodic solutions for a model of contaminant flow in porous medium. %J Rendiconti del seminario matematico %D 2003 %P 1-11 %V 61 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/RSM_2003__61_1_126550/ %G en %F RSM_2003__61_1_126550