TY - JOUR AU - O. A. Plaksina TI - Inverse problems of spectral analysis for the Sturm–Liouville operators with nonseparated boundary conditions JO - Sbornik. Mathematics PY - 1988 SP - 1 EP - 23 VL - 59 IS - 1 UR - http://geodesic.mathdoc.fr/item/SM_1988_59_1_a0/ LA - en ID - SM_1988_59_1_a0 ER -