CULL, S. J.; TUCKER, R. W.; TUNG, R. S.; HARTLEY, D. H. On Parametrically Excited Flexural Motion of an Extensible and Shearable Rod with a Heavy Attachment. Technische Mechanik - European Journal of Engineering Mechanics, [S. l.], v. 20, n. 2, p. 147–157, 2019. Disponível em: https://journals.ub.ovgu.de/index.php/techmech/article/view/1077. Acesso em: 3 jul. 2024.