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"Multiple positive solutions for higher-order boundary value problems with ..."
Yanping Guo, Yujun Zhu, Ji-Qing Qiu (2004)
- Yanping Guo, Yujun Zhu, Ji-Qing Qiu:
Multiple positive solutions for higher-order boundary value problems with sign changing nonlinearities. Appl. Math. Lett. 17(3): 329-336 (2004)
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