Wu, S. ., S. . Zuo, X. . Wu, F. . Lin, and J. . Shen. “Magnet Modification to Reduce Pulsating Torque for Axial Flux Permanent Magnet Synchronous Machines”. Applied Computational Electromagnetics Society Journal (ACES), vol. 31, no. 03, Aug. 2021, pp. 294-03, https://journals.riverpublishers.com/index.php/ACES/article/view/10205.