%0 Journal Article %A M. G. Zavgorodnii %T The spectrum of a multipoint boundary value problem %J Differencialʹnye uravneniâ %D 1984 %P 1443-1444 %V 20 %N 8 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_1984_20_8_a24/ %G ru %F DE_1984_20_8_a24