KARFES, S.; HADIDI, E. Periodic solutions of a differential perturbed system via the averaging theory and the Melnikov method. Journal of Innovative Applied Mathematics and Computational Sciences, [S. l.], v. 3, n. 1, p. 49–65, 2023. DOI: 10.58205/jiamcs.v3i1.59. Disponível em: https://jiamcs.centre-univ-mila.dz/index.php/jiamcs/article/view/59. Acesso em: 11 may. 2024.