SZYBOWSKI, Jacek. A proof of the continuation property of the Conley index over a phase space. Topological Methods in Nonlinear Analysis, [S. l.], v. 31, n. 1, p. 139–149, 2008. Disponível em: https://apcz.umk.pl/TMNA/article/view/TMNA.2008.007. Acesso em: 8 jul. 2025.