1. Random Vibrations, Spectral & Wavelet analysis (3rd edition);Newland,1993
2. The Steady-state Response of a Single-degree-of-freedom System Subjected to a Harmonic Force;Irvine,1999
3. Mechanical Vibrations 5th edition;Rao,2010
4. Modal Testing: Theory and Practice;Ewins,1995
5. Fatigue of Metals Subjected to Varying Stress;Matsuishi,1968