WILCZAK, D. Symmetric homoclinic solutions to the periodic orbits in the Michelson system. Topological Methods in Nonlinear Analysis, [S. l.], v. 28, n. 1, p. 155–170, 2006. Disponível em: https://apcz.umk.pl/TMNA/article/view/TMNA.2006.025. Acesso em: 22 jul. 2024.