Acta Physica Sinica
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Acta Phys. Sin.  2010, Vol. 59 Issue (10): 6859.     DOI: 10.7498/aps.59.6859
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Acquisition method of precise periodic signal and uniqueness of periodic solutions of Duffing oscillator system
Wang Kun, Guan Xin-Ping, Ding Xi-Feng, Qiao Jie-Min
College of Science, Yanshan University, Qinhuangdao 066004, China

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