1. Rotating Machinery Vibration: From Analysis to Troubleshooting;Adams,2000
2. I.A. Birger, Ya.G. Panovko (Eds.), Strength, Stability, Vibrations, Mashinostroenie Publishers, Moscow, 1968 (in Russian).
3. Calculation of Shaft Vibrations;Maslov,1968
4. A Handbook on Torsional Vibration;Nestorides,1958
5. Non-linear free torsional vibrations of thin-walled beams with bisymmetric cross-section;Rozmarynowski;Journal of Sound and Vibration,1984