Three positive periodic solutions of second order nonlinear neutral functional differential equations with delayed derivative.

MLA

Yang, He, and Lu Zhang. “Three Positive Periodic Solutions of Second Order Nonlinear Neutral Functional Differential Equations with Delayed Derivative.” Advances in Difference Equations, vol. 2020, no. 1, Apr. 2020, pp. 1–12. EBSCOhost, https://doi.org/10.1186/s13662-020-02630-z.

APA

Yang, H., & Zhang, L. (2020). Three positive periodic solutions of second order nonlinear neutral functional differential equations with delayed derivative. Advances in Difference Equations, 2020(1), 1–12. https://doi.org/10.1186/s13662-020-02630-z

Chicago

Yang, He, and Lu Zhang. 2020. “Three Positive Periodic Solutions of Second Order Nonlinear Neutral Functional Differential Equations with Delayed Derivative.” Advances in Difference Equations 2020 (1): 1–12. doi:10.1186/s13662-020-02630-z.