APA (7th ed.) Citation

Li, Q., & Li, Y. On the Existence of Positive Periodic Solutions for Second-Order Functional Differential Equations with Multiple Delays. Wiley.

Chicago Style (17th ed.) Citation

Li, Qiang, and Yongxiang Li. On the Existence of Positive Periodic Solutions for Second-Order Functional Differential Equations with Multiple Delays. Wiley.

MLA (9th ed.) Citation

Li, Qiang, and Yongxiang Li. On the Existence of Positive Periodic Solutions for Second-Order Functional Differential Equations with Multiple Delays. Wiley.