%0 Journal Article %A A. V. Shkred %T Linearization of spectral problems with the parameter in their boundary conditions and the properties of the M.\,V.~Keldysh derived chains %J Matematičeskie zametki %D 1989 %P 99-109 %V 46 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/MZM_1989_46_4_a12/ %G ru %F MZM_1989_46_4_a12