TUNÇ, E. On the convergence of solutions of certain inhomogeneous fourth-order differential equations. Ukrains’kyi Matematychnyi Zhurnal, [S. l.], v. 62, n. 5, p. 714–721, 2010. Disponível em: https://umj.imath.kiev.ua/index.php/umj/article/view/2903. Acesso em: 5 dec. 2025.