GAVIOLI, A. On the existence of heteroclinic trajectories for asymptotically autonomous equations. Topological Methods in Nonlinear Analysis, [S. l.], v. 34, n. 2, p. 251–266, 2009. Disponível em: https://apcz.umk.pl/TMNA/article/view/TMNA.2009.041. Acesso em: 24 apr. 2024.