%0 Journal Article %A Mach, Thomas %A Pranić, Miroslav S. %A Vandebril, Raf %T Computing approximate (block) rational Krylov subspaces without explicit inversion with extensions to symmetric matrices %J Electronic transactions on numerical analysis %D 2015 %V 43 %I mathdoc %U http://geodesic.mathdoc.fr/item/ETNA_2015__43__a5/ %G en %F ETNA_2015__43__a5