A.Sh.Shaldanbayev, A.A.Shaldanbayeva, B.A.Shaldanbay. INVERSE PROBLEM OF THE STURM-LIOUVILLE OPERATOR WITH UNSEPARATED BOUNDARY VALUE CONDITIONS AND SYMMETRIC POTENTIAL. PMS [Интернет]. 10 август 2019 г. [цитируется по 13 март 2025 г.];(4):30-41. доступно на: http://91834.libg.asia/physics-mathematics/article/view/1673