%0 Journal Article %A V. P. Il'in %T Projection methods in Krylov subspaces %J Zapiski Nauchnykh Seminarov POMI %D 2018 %P 103-119 %V 472 %U http://geodesic.mathdoc.fr/item/ZNSL_2018_472_a8/ %G ru %F ZNSL_2018_472_a8