%0 Journal Article %A N. D. Kopachevskii %T Basicity properties of the system of characteristic and associated vectors of the self-adjoint operator pencil $I-\lambda A-\lambda^{-1}B$ %J Funkcionalʹnyj analiz i ego priloženiâ %D 1981 %P 77-78 %V 15 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/FAA_1981_15_2_a12/ %G ru %F FAA_1981_15_2_a12