Popov, Nickolay. “NON-LINEAR MODEL IN REGION OF VERY LOW SPEEDS FOR A PERMANENT MAGNET DIRECT CURRENT MOTOR”.
ENVIRONMENT. TECHNOLOGY. RESOURCES. Proceedings of the International Scientific and Practical Conference 3 (June 22, 2024): 225–231. Accessed April 6, 2025.
https://journals23.rta.lv/index.php/ETR/article/view/8152.