LADAS, G.; LUGO, G.; PALLADINO, F. J. Open Problems and Conjectures on Rational Systems in Three Dimensions. Sarajevo Journal of Mathematics, [S. l.], v. 8, n. 2, p. 311–321, 2024. DOI: 10.5644/SJM.08.2.11. Disponível em: https://sjm.anubih.ba/index.php/sjm/article/view/267. Acesso em: 15 oct. 2024.