CHEN, G. Homoclinic orbits of first order nonlinear Hamiltonian systems with asymptotically linear nonlinearities at infinity. Topological Methods in Nonlinear Analysis, [S. l.], v. 47, n. 2, p. 499–510, 2016. Disponível em: https://apcz.umk.pl/TMNA/article/view/TMNA.2016.038. Acesso em: 22 jul. 2024.