BICH, D. H.; BICH, N. D.; TUAN, N. A. On the solutions of the Mathieu’s equation. Vietnam Journal of Mechanics, Hanoi, Vietnam, v. 30, n. 4, p. 219 –, 2008. DOI: 10.15625/0866-7136/30/4/5627. Disponível em: https://vjs.ac.vn/index.php/vjmech/article/view/5627. Acesso em: 20 apr. 2024.