TEAM, S. A New Approximation For Singular Inverse Sturm-Liouville Problem: Erdal Bas, Etibar Panakhov. Thai Journal of Mathematics, [S. l.], v. 10, n. 3, p. 685–692, 2012. Disponível em: https://thaijmath2.in.cmu.ac.th/index.php/thaijmath/article/view/350. Acesso em: 4 may. 2024.