2否定 发表于 2025-3-30 09:18:11

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贝雷帽 发表于 2025-3-30 14:56:48

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查看完整版本: Titlebook: Nonlinear Oscillations and Waves in Dynamical Systems; P. S. Landa Book 1996 Springer Science+Business Media Dordrecht 1996 Degrees of fre