%0 Journal Article %A L. I. Mammadova %A I. M. Nabiev %T Spectral properties of the Sturm--Liouville operator with a spectral parameter quadratically included in the boundary condition %J Vestnik Udmurtskogo universiteta. Matematika, mehanika, kompʹûternye nauki %D 2020 %P 237-248 %V 30 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/VUU_2020_30_2_a6/ %G ru %F VUU_2020_30_2_a6