Conditions for Oscillation of a Neutral Differential Equation

Chen, M. P., Yu, Y. H., & Liu, B. (1996). Oscillation of Solutions of Nonlinear Partial Differential Equations of Neutral Type. 中原學報, 24(3), 17-22. https://doi.org/10.6358/JCYU.199607.0017
Hamouri, R. A., & Zein, A. (2014). Oscillation Criteria for Certain Even Order Neutral Delay Differential Equations. International Journal of Differential Equations, (2014), 118-122. https://doi.org/10.1155/2014/437278
Xu, R. (2013). Oscillation Criteria for Nonlinear Fractional Differential Equations. Journal of Applied Mathematics, 2013(), 691-697-868. https://doi.org/10.1155/2013/971357
LI, X., ZHU, D., & WANG, H. (2003). OSCILLATION FOR ADVANCED DIFFERENTIAL EQUATIONS WITH OSCILLATING COEFFICIENTS. International Journal of Mathematics and Mathematical Sciences, 2003(), 2109-2118-161. https://doi.org/10.1155/S0161171203209030
Liu, Z. Q., Xu, Y. G., Kang, S. M., & Kwun, Y. C. (2012). Bounded Oscillation of a Forced Nonlinear Neutral Differential Equation. Abstract and Applied Analysis, 2012(), 250-282-415. https://doi.org/10.1155/2012/546302