%0 Journal Article %A Girault, V. %A Lions, J.-L. %T Two-grid finite-element schemes for the steady Navier-Stokes problem in polyhedra. %J Portugaliae mathematica %D 2001 %P 25-57 %V 58 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/PORMA_2001__58_1_49511/ %G en %F PORMA_2001__58_1_49511