ARDJOUNI, A.; DJOUDI, A. Existence of Periodic Solutions for Totally Nonlinear Neutral Differential Equations With Variable Delay. Sarajevo Journal of Mathematics, [S. l.], v. 8, n. 1, p. 107–117, 2024. DOI: 10.5644/SJM.08.1.08. Disponível em: https://sjm.anubih.ba/index.php/sjm/article/view/280. Acesso em: 15 oct. 2024.