Plakhtii, O., Nerubatskyi, V., Sushko, D., Ryshchenko, I., Tsybulnyk, V. and Hordiienko, D. (2019) “Improving energy characteristics of ac electric rolling stock by using the three-level active four-quadrant rectifiers”, Eastern-European Journal of Enterprise Technologies, 4(8 (100), pp. 6–14. doi: 10.15587/1729-4061.2019.174112.