%0 Journal Article %A Huckle, Thomas K. %A Noutsos, Dimitrios %T Preconditioning block Toeplitz matrices %J Electronic transactions on numerical analysis %D 2008 %V 29 %I mathdoc %U http://geodesic.mathdoc.fr/item/ETNA_2008__29__a11/ %G en %F ETNA_2008__29__a11