ZHANG, Ziheng; YUAN, Rong. Two Almost Homoclinic Solutions for a Class of Perturbed Hamiltonian Systems Without Coercive Conditions. Mathematical Modelling and Analysis, [S. l.], v. 20, n. 1, p. 112–123, 2015. DOI: 10.3846/13926292.2015.1003619. Disponível em: https://journals.vilniustech.lt/index.php/MMA/article/view/987. Acesso em: 9 may. 2025.