Reply to ‘Comment on “He's frequency formulation for nonlinear oscillators”’
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Xu-Chu Cai | Lei Geng | Lei Geng | Xu-chu Cai
[1] Ji-Huan He,et al. Comment on ‘He's frequency formulation for nonlinear oscillators’ , 2008 .
[2] Xu-Chu Cai,et al. He's frequency formulation for nonlinear oscillators , 2007 .