%0 Journal Article %A Hanisch, M.R. %T Two-level additive Schwarz preconditioners for fourth-order mixed methods %J Electronic transactions on numerical analysis %D 2006 %P 1-16 %V 22 %I mathdoc %U http://geodesic.mathdoc.fr/item/ETNA_2006__22__a8/ %G en %F ETNA_2006__22__a8