%0 Journal Article %A Arioli, M. %A Maryška, J. %A Rozložník, M. %A Tůma, M. %T Dual variable methods for mixed-hybrid finite element approximation of the potential fluid flow problem in porous media %J Electronic transactions on numerical analysis %D 2006 %P 17-40 %V 22 %I mathdoc %U http://geodesic.mathdoc.fr/item/ETNA_2006__22__a7/ %G en %F ETNA_2006__22__a7