UDDIN, M. A.; ULLAH, M. W.; BIPASHA, R. S. An approximate analytical technique for solving second order strongly nonlinear generalized duffing equation with small damping. Journal of Bangladesh Academy of Sciences, [S. l.], v. 39, n. 1, p. 103–114, 2015. DOI: 10.3329/jbas.v39i1.23664. Disponível em: https://banglajol.info/index.php/JBAS/article/view/23664. Acesso em: 17 jul. 2024.