D. Dorrell, L. Parsa, I. Boldea, Oct 2014, Automotive electric motors, generators, and actuator drive systems with reduced or no permanent magnets and innovative design concepts, IEEE Trans. Ind. Electron., Vol. 61, No. 10, pp. 5693-5695

M. Castano Sandra, Weisheng Jiang1 James, Bilgin1 Berker, Dadkhah Hossein, Patel Nitin, June 2019, Design of a Spoke-Type Ferrite Magnet Generator for a Hybrid Electric Vehicle Application, in ITEC 2019, pp. 19-21

Z. S. Du, T. A. Lipo, August 2017, Efficient utilization of rare earth permanent magnet materials and torque ripple reduction in interior permanent magnet machines, IEEE Transactions on Industry Applications, Vol. 53, No. 4, pp. 3485-3495

Sooyoung Cho, Hanwoong Ahn, Sang-Hwan Ham, Chang-Sung Jin, Sung Gu Lee, Ju Lee, 2016, Design of Fan-shape Type PMSM for Improving Efficiency of Non-rare Earth Motor, The Transactions of the Korean Institute of Electrical Engineers, Vol. 65, No. 2, pp. 360-364

Min-Jae Jeong, Sung-Gu Lee, Hyung-Sik Kong, Hyun-Jo Pyo, Dong-Woo Nam, Seo-hee Yang, Seung-hyeon Lee, Won-Ho Kim, 2019, Design of Spoke Type Permanent Magnet Synchronous Motor of Maximize Utilization in Reluctance Torque, The 50th KIEE Summer Conference, pp. 1109-1110