1. A new method of modeling gear faults;Randall;ASME Journal of Mechanical Design,1982
2. Condition monitoring of rolling element bearings using the enveloping technique. Machine Condition Monitoring;Radcliff,1990
3. J.J. Zakrajsek, R.F. Handschuh, D.G. Lewicki, et al., Detecting gear tooth fracture in a high contact ratio face gear mesh, In: Proceedings of 49th Meeting of the Mechanical Failure Prevention Group. Virginia Beach, VA, 1995. pp. 18–20.
4. Vibration monitoring of rolling element bearings by the high frequency resonance technique-a review;McFadden;Tribology International,1984
5. Wavelet analysis and envelope detection for rolling bearing fault diagnosis-their effectiveness and flexibilities;Peter;Journal of Vibration and Acoustics,2001