T. Genda, H. Dohmeki: “Characteristics of 4/2 Switched Reluctance Motor for a high speed drive by the excitation angle,” International Conference on Electrical Machines and Systems, pp. 1-6 (2009).
K. Nakamura, M. Fukuoka, O. Ichinokura: “Performance improvement of magnetic gear and efficiency comparison with conventional mechanical gear,” Journal of Applied Physics, Vol. 115, 17A314 (2014).