%0 Journal Article %A L. S. Rakovshchik %T Some propositions on regularization of linear operators in Banach spaces %J Doklady Akademii Nauk %D 1961 %P 1023-1025 %V 140 %N 5 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1961_140_5_a10/ %G ru %F DAN_1961_140_5_a10