Asymptotic Criteria of Neutral Differential Equations with Positive and Negative Coefficients and Impulsive Integral Term. Iraqi Journal of Science, [S. l.], v. 61, n. 9, p. 2315–2323, 2020. DOI: 10.24996/ijs.2020.61.9.18. Disponível em: https://ijs.uobaghdad.edu.iq/index.php/eijs/article/view/1732.. Acesso em: 4 may. 2024.