TUNÇ, C. On the Boundedness of Solutions of a Non-autonomous Differential Equation of Second Order. Sarajevo Journal of Mathematics, [S. l.], v. 7, n. 1, p. 19–29, 2024. DOI: 10.5644/SJM.07.1.03. Disponível em: https://sjm.anubih.ba/index.php/sjm/article/view/301. Acesso em: 15 oct. 2024.