TY - JOUR AU - L. I. Mammadova AU - I. M. Nabiev TI - Spectral properties of the Sturm--Liouville operator with a spectral parameter quadratically included in the boundary condition JO - Vestnik Udmurtskogo universiteta. Matematika, mehanika, kompʹûternye nauki PY - 2020 SP - 237 EP - 248 VL - 30 IS - 2 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/VUU_2020_30_2_a6/ LA - ru ID - VUU_2020_30_2_a6 ER -