BEREZANSKY, Yu. M. The integration of double-infinite Toda lattice by means of inverse spectral problem and related questions. Methods of Functional Analysis and Topology, [S. l.], v. 15, n. 2, p. 101–136, 2009. Disponível em: https://zen.imath.kiev.ua/index.php/mfat/article/view/413. Acesso em: 16 dec. 2025.