Cite
HARVARD Citation
Ma, T. et al. (2014). Infinitely Many Periodic Solutions of Duffing Equations with Singularities via Time Map. Abstract and applied analysis. p. . [Online].
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Ma, T. et al. (2014). Infinitely Many Periodic Solutions of Duffing Equations with Singularities via Time Map. Abstract and applied analysis. p. . [Online].