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| 2005 | ||
|---|---|---|
| 2 | EE | Fuyi Li, Zhanping Liang: Existence of positive periodic solutions to nonlinear second order differential equations. Appl. Math. Lett. 18(11): 1256-1264 (2005) |
| 2004 | ||
| 1 | EE | Fuyi Li, Yajing Zhang: Multiple symmetric nonnegative solutions of second-order ordinary differential equations. Appl. Math. Lett. 17(3): 261-267 (2004) |
| 1 | Zhanping Liang | [2] |
| 2 | Yajing Zhang | [1] |