共 50 条
- [2] Periodic Solutions of a Class of Nonlinear Systems of Ordinary Differential Equations Differential Equations, 2004, 40 : 502 - 514
- [4] Periodic Solutions of Nonlinear Nonautonomous Systems of Ordinary Differential Equations Differential Equations, 2001, 37 : 598 - 602
- [6] Finding periodic solutions of ordinary differential equations via homotopy method Applied Mathematics and Computation (New York), 1994, 62 (2-3):
- [7] Finding periodic solutions of ordinary differential equations via homotopy method Applied Mathematics and Computation (New York), 1996, 78 (01):