Abedinilaksar, M. Javad, and Jianming Yang. “Stability Analysis of a Planetary Gear Train Having Repeated Natural Frequencies”. Journal of Vibration Testing and System Dynamics 5, no. 4 (December 1, 2021): 321–336. Accessed October 17, 2026. https://lhscientificpublishing.com/index.php/jvtsd/article/view/156.