%0 Journal Article %A Yu. A. Mamedov %T Expansions in residues of the solution of a spectral problem for a system of ordinary differential equations %J Differencialʹnye uravneniâ %D 1989 %P 409-423 %V 25 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_1989_25_3_a4/ %G ru %F DE_1989_25_3_a4