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- [2] Finding periodic solutions of ordinary differential equations via homotopy method Applied Mathematics and Computation (New York), 1994, 62 (2-3):
- [3] Finding periodic solutions of ordinary differential equations via homotopy method Applied Mathematics and Computation (New York), 1996, 78 (01):
- [8] Existence of Periodic Solutions for a Class of Second Order Ordinary Differential Equations Acta Applicandae Mathematicae, 2020, 169 : 193 - 197