A Study on the Conditions of Oscillation of Solutions of Second Order Impulsive Delay Differential Equations. AL-Rafidain Journal of Computer Sciences and Mathematics, [S. l.], v. 9, n. 1, p. 129–137, 2012. DOI: 10.33899/csmj.2012.163676 . Disponível em: https://csmj.uomosul.edu.iq/index.php/csmj/article/view/36729. Acesso em: 25 jun. 2026.