Galinovskiy, A. M., E. A. Lenskaya, and N. P. Melnik. “DIRECT FREQUENCY CONVERTER WITH ARTIFICIAL AND NATURAL COMMUTATION FOR BRUSHLESS ASYNCHRONIZED MACHINES”. Electrical Engineering & Electromechanics, no. 5, Nov. 2015, pp. 23-30, doi:10.20998/2074-272X.2015.5.03.