Li, Fengying; Zhang, Shiqing; Zhao, Xiaoxiao Periodic solutions of non-autonomous second order Hamiltonian systems. (Chinese. English summary) Zbl 1488.70022 Sci. Sin., Math. 44, No. 12, 1257-1262 (2014). MSC: 70H12 34C25 34C15 PDFBibTeX XMLCite \textit{F. Li} et al., Sci. Sin., Math. 44, No. 12, 1257--1262 (2014; Zbl 1488.70022) Full Text: DOI arXiv
Panopoulos, G. A.; Simos, T. E. A new phase-fitted eight-step symmetric embedded predictor-corrector method (EPCM) for orbital problems and related IVPs with oscillating solutions. (English) Zbl 1348.70069 Comput. Phys. Commun. 185, No. 2, 512-523 (2014). MSC: 70M20 70F10 65L06 65L05 34C25 34L40 65Y20 PDFBibTeX XMLCite \textit{G. A. Panopoulos} and \textit{T. E. Simos}, Comput. Phys. Commun. 185, No. 2, 512--523 (2014; Zbl 1348.70069) Full Text: DOI