%0 Journal Article %A M. A. Sadybekov %A N. S. Imanbaev %T Characteristic determinant of a boundary value problem, which does not have the basis property %J Eurasian mathematical journal %D 2017 %P 40-46 %V 8 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/EMJ_2017_8_2_a3/ %G en %F EMJ_2017_8_2_a3