AKHTYAMOV, A.; SADOVNICHY, V.; SULTANAEV, Y. Inverse problem for an operator pencil with nonseparated boundary conditions. Eurasian Mathematical Journal, [S. l.], v. 1, n. 2, 2024. Disponível em: https://emj.enu.kz/index.php/main/article/view/37. Acesso em: 5 oct. 2024.