1. Y.J. Mao, H.J. Deng, Y.L. Li, R.J. He, H.W. Xiao, X.H. Yue, H.Y. Huang and Q. Zhou: Applied Mechanics and Materials Vols. 29-32 (2010), pp.72-77.
2. Z.X. Cheng: Wavelet Analysis algorithm and Applications (Xi'an Jiaotong University Press, 1998).
3. C.H. Hu, J.B. Zhang, J. Xia and W. Zhang: System Analysis and Design Based on Matlab - Wavelet Analysis (Xidian University Press, 1999).
4. C.H. Hu, T. Zhou, Q.J. Xia and W. Zhang: System Analysis and Design Based on Matlab - Time-Frequency Analysis (Xidian University Press, 2003).
5. Z.K. Peng and F.L. Chu: Mechanical Systems and Signal Processing Vol. 18 (2004), pp.199-221.