ZIHENG ZHANG; HONGJUN LI. Periodic Solutions for Damped Vibration Problems. Journal of Advances in Applied & Computational Mathematics, [S. l.], v. 1, n. 2, p. 54–61, 2015. DOI: 10.15377/2409-5761.2014.01.02.4. Disponível em: https://ijaet-journal.org/index.php/jaacm/article/view/161. Acesso em: 13 jul. 2025.