Oscillation Criteria for Solutions of Neutral Differential Equations of Impulses Effect with Positive and Negative Coefficients: eventually positive solutions and differential inequalities. Baghdad Sci.J [Internet]. 2020 May 11 [cited 2024 May 4];17(2):0537. Available from: https://bsj.uobaghdad.edu.iq/index.php/BSJ/article/view/3073