Cheng, R., & Hu, J. Variational Approaches for the Existence of Multiple Periodic Solutions of Differential Delay Equations. Wiley.
Chicago Style (17th ed.) CitationCheng, Rong, and Jianhua Hu. Variational Approaches for the Existence of Multiple Periodic Solutions of Differential Delay Equations. Wiley.
MLA (9th ed.) CitationCheng, Rong, and Jianhua Hu. Variational Approaches for the Existence of Multiple Periodic Solutions of Differential Delay Equations. Wiley.
Warning: These citations may not always be 100% accurate.