KOSTIN, N. A.; SHEIKINA, O. H. The signs of availability of exchange power in electric traction circuits of the direct current system. Science and Transport Progress , [S. l.], n. 42, p. 98–102, 2012. DOI: 10.15802/stp2012/9295. Disponível em: https://stp.ust.edu.ua/article/view/9295. Acesso em: 19 apr. 2024.