FABBRI, R.; JÄGER, T.; JOHNSON, R.; KELLER, G. A Sharkovskii-type theorem for minimally forced interval maps. Topological Methods in Nonlinear Analysis, [S. l.], v. 26, n. 1, p. 163–188, 2005. Disponível em: https://apcz.umk.pl/TMNA/article/view/TMNA.2005.029. Acesso em: 3 may. 2024.