Universal functions and exactly solvable chaotic systems. São Paulo Journal of Mathematical Sciences, [S. l.], v. 2, n. 2, p. 204–221, 2008. DOI: 10.11606/issn.2316-9028.v2i2p204-221. Disponível em: https://www.revistas.usp.br/spjournal/article/view/28.. Acesso em: 30 abr. 2024.