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"Periodic solutions for a second order nonlinear functional differential ..."
Youyu Wang, Hairong Lian, Weigao Ge (2007)
- Youyu Wang, Hairong Lian, Weigao Ge:
Periodic solutions for a second order nonlinear functional differential equation. Appl. Math. Lett. 20(1): 110-115 (2007)
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