%0 Journal Article %A V. V. Ditkin %T Some spectral properties of a~bundle of linear operators in Banach space %J Matematičeskie zametki %D 1977 %P 847-857 %V 22 %N 6 %I mathdoc %U http://geodesic.mathdoc.fr/item/MZM_1977_22_6_a6/ %G ru %F MZM_1977_22_6_a6