2. Santalov, A. M., & Serebryakov, A.D. (1976). On the optimal geometry of the tooth zone of inductor machines. In Proceedings of RKIIGA (Vol. 113, pp. 12–23). Riga (in Russian).
3. Serebryakov, A. D. (1982). Optimal tooth zone of the inductor motor. Contactless electric machines (Vol. 21, pp. 157–162). Riga: Zinatne (in Russian).
4. Alper, N. J. (1962). Calculation of magnetic fields in the air gap of the inductor machine with constant flow. In Bulletin of Electronic Industry, Vol. 3. Moscow (in Russian).