Xu, Y., X. Tang, G. Feng, D. Wang, C. . Ashworth, F. Gu, and A. Ball. “Orthogonal On-Rotor Sensing Vibrations for Condition Monitoring of Rotating Machines”. Journal of Dynamics, Monitoring and Diagnostics, vol. 1, no. 1, Dec. 2021, pp. 29-36, doi:10.37965/jdmd.v2i2.47.