%0 Journal Article %A Elman, Howard C. %A Tuminaro, Ray S. %T Boundary conditions in approximate commutator preconditioners for the Navier-Stokes equations %J Electronic transactions on numerical analysis %D 2009 %P 257-280 %V 35 %I mathdoc %U http://geodesic.mathdoc.fr/item/ETNA_2009__35__a0/ %G en %F ETNA_2009__35__a0