First Order Nonlinear Neutral Delay Differential Equations . مجلة بغداد للعلوم, Iraq, Baghdad, v. 1, n. 2, p. 347–349, 2004. Disponível em: https://bsj.uobaghdad.edu.iq/index.php/BSJ/article/view/572.. Acesso em: 4 2024.