%0 Journal Article %A M. P. Sapagovas %A A. D. Štikonas %T On the Structure of the Spectrum of a Differential Operator with a Nonlocal Condition %J Differencialʹnye uravneniâ %D 2005 %P 961-969 %V 41 %N 7 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_2005_41_7_a12/ %G ru %F DE_2005_41_7_a12