NIZHNIK, L. P. Inverse spectral problems for Jacobi matrix with finite perturbed parameters. Methods of Functional Analysis and Topology, [S. l.], v. 21, n. 3, p. 256–265, 2015. Disponível em: https://zen.imath.kiev.ua/index.php/mfat/article/view/616. Acesso em: 16 dec. 2025.