%0 Journal Article %A G. Wittum %T Mulit-Grid Methods for Stokes and Navier-Stokes Equations. Transforming Smoothers: Algorithms and Numerical Results. %J Numerische Mathematik %D 1989 %P 543-564 %V 54 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/NUMA_1989__54_3_133332/ %F NUMA_1989__54_3_133332