TY - JOUR AU - B. M. Levitan TI - Determination of the Sturm--Liouville differential equation by two spectra JO - Doklady Akademii Nauk PY - 1963 SP - 474 EP - 476 VL - 150 IS - 3 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DAN_1963_150_3_a5/ LA - ru ID - DAN_1963_150_3_a5 ER -