DORGHAM, A.; HAMMI, M.; HAMMAMI , M. A. Asymptotic behavior of a class of perturbed differential equations. Ukrains’kyi Matematychnyi Zhurnal, [S. l.], v. 73, n. 5, p. 627–639, 2021. DOI: 10.37863/umzh.v73i5.232. Disponível em: https://umj.imath.kiev.ua/index.php/umj/article/view/232. Acesso em: 7 apr. 2025.