%0 Journal Article %A A. K. Motovilov %A A. A. Shkalikov %T Preserving of the unconditional basis property under non-self-adjoint perturbations of self-adjoint operators %J Funkcionalʹnyj analiz i ego priloženiâ %D 2019 %P 45-60 %V 53 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/FAA_2019_53_3_a3/ %G ru %F FAA_2019_53_3_a3