KANGUZHIN, B. E.; TOKMAGAMBETOV, N. E. Uniqueness theorem of boundary inverse problems of differential operators on an interval. Journal of Mathematics, Mechanics and Computer Science, [S. l.], v. 80, n. 1, p. 54–65, 2014. Disponível em: https://bm.kaznu.kz/index.php/kaznu/article/view/45. Acesso em: 3 apr. 2025.