%0 Journal Article %A Lambers, James V. %T Enhancement of Krylov subspace spectral methods by block Lanczos iteration %J Electronic transactions on numerical analysis %D 2008 %P 86-109 %V 31 %I mathdoc %U http://geodesic.mathdoc.fr/item/ETNA_2008__31__a16/ %G en %F ETNA_2008__31__a16