Yeh, Nai-Sher On solvability theorems of second-order ordinary differential equations with delay. (English) Zbl 1470.34181 Abstr. Appl. Anal. 2018, Article ID 5321314, 6 p. (2018). MSC: 34K13 34K10 PDF BibTeX XML Cite \textit{N.-S. Yeh}, Abstr. Appl. Anal. 2018, Article ID 5321314, 6 p. (2018; Zbl 1470.34181) Full Text: DOI OpenURL
Liu, Bingwen; Huang, Lihong Periodic solutions for nonlinear \(n\)th order differential equations with delays. (English) Zbl 1105.34044 J. Math. Anal. Appl. 313, No. 2, 700-716 (2006). Reviewer: Meng Fan (Changchun) MSC: 34K13 PDF BibTeX XML Cite \textit{B. Liu} and \textit{L. Huang}, J. Math. Anal. Appl. 313, No. 2, 700--716 (2006; Zbl 1105.34044) Full Text: DOI OpenURL
Li, Jing-Wen; Cheng, Sui Sun Periodic solutions of a second order forced sublinear differential equation with delay. (English) Zbl 1097.34050 Appl. Math. Lett. 18, No. 12, 1373-1380 (2005). Reviewer: He Chungyou (Nanjing) MSC: 34K13 PDF BibTeX XML Cite \textit{J.-W. Li} and \textit{S. S. Cheng}, Appl. Math. Lett. 18, No. 12, 1373--1380 (2005; Zbl 1097.34050) Full Text: DOI OpenURL
Ma, Shiwang; Wang, Zhicheng; Yu, Jianshe Coincidence degree and periodic solutions of Duffing equations. (English) Zbl 0931.34048 Nonlinear Anal., Theory Methods Appl. 34, No. 3, 443-460 (1998). Reviewer: P.Smith (Keele) MSC: 34K13 34C25 PDF BibTeX XML Cite \textit{S. Ma} et al., Nonlinear Anal., Theory Methods Appl. 34, No. 3, 443--460 (1998; Zbl 0931.34048) Full Text: DOI OpenURL