BONHEURE, D.; CID, J. Ángel; DE COSTER, C.; SANCHEZ, L. Heteroclinics for non autonomous third order differential equations. Topological Methods in Nonlinear Analysis, [S. l.], v. 43, n. 1, p. 53–68, 2016. Disponível em: https://apcz.umk.pl/TMNA/article/view/TMNA.2014.004. Acesso em: 25 apr. 2024.