PETROV, A. V. INDICATORS OF QUALITY OF ELECTRIC ENERGY IN THE ELECTRIC TRACTION DC. Science and Transport Progress , [S. l.], n. 32, p. 180–183, 2010. DOI: 10.15802/stp2010/13388. Disponível em: https://stp.ust.edu.ua/article/view/13388. Acesso em: 22 nov. 2024.