%0 Journal Article %A Duff, Iain S. %A Kaya, Kamer %T Preconditioners based on strong subgraphs %J Electronic transactions on numerical analysis %D 2013 %P 225-248 %V 40 %I mathdoc %U http://geodesic.mathdoc.fr/item/ETNA_2013__40__a14/ %G en %F ETNA_2013__40__a14