Morozov, D. I., and I. S. Shevchenko. “VALVE DIRECT CURRENT MOTOR ON THE BASIS OF THE SYNCHRONOUS MACHINE OF INVERSE DESIGN”. Electrical Engineering and Power Engineering, no. 2 (December 10, 2014): 6–12. Accessed November 29, 2024. https://ee.zp.edu.ua/article/view/87219.