TY - JOUR AU - O. A. Plaksina TI - Asymptotic formulas for the spectrum of a~class of Sturm--Liouville boundary value problems JO - Trudy Matematicheskogo Instituta imeni V.A. Steklova PY - 1987 SP - 177 EP - 178 VL - 180 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/TM_1987_180_a105/ LA - ru ID - TM_1987_180_a105 ER -