Nguyen Quoc Hieu, Kryukov A. V., Suslov K. V., and Mai Khanh Duong, “DEVELOPMENT OF DIGITAL MODELS FOR DETERMINING THE MODES OF THE DC TRACTION POWER SUPPLY SYSTEM”, HUIT_OJS, vol. 26, no. 2E, p. 196, Jun. 2026, doi: 10.62985/j.huit_ojs.vol26.no2E.392.