Li, Hui. “Design and Optimization of an Improved Hybrid Permanent Magnets Vernier Machine With Less-Rare-Earth and High Torque Density”. Archives of Electrical Engineering 74, no. 1 (March 30, 2025): 86–103. Accessed October 17, 2026. https://wydawnictwo.pan.pl/index.php/aee/article/view/5915.