%0 Journal Article %A Pearson, John W. %T On the development of parameter-robust preconditioners and commutator arguments for solving Stokes control problems %J Electronic transactions on numerical analysis %D 2015 %P 53-72 %V 44 %I mathdoc %U http://geodesic.mathdoc.fr/item/ETNA_2015__44__a27/ %G en %F ETNA_2015__44__a27