%0 Journal Article %A A. Raptis %T Unsteady mass transfer and free convection through a porous medium %J Theoretical and applied mechanics %D 1983 %P 105 %V 9 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/TAM_1983_9_1_a10/ %G en %F TAM_1983_9_1_a10