Jia-Jang Wu,  Prediction of the Torsional Vibration Characteristics of a Rotor-Shaft System Using Its Scale Model and Scaling Laws.   journal   = {International Journal of Mechanical and Mechatronics Engineering}, [online]. World Academy of Science, Engineering and Technology.
    January 2015, vol. 98(2). 229 - 234
    [viewed 19 April 2024]. Available from: https://publications.waset.org/pdf/10000359.