HONCHAROV, K. V. Improving the stability of tonal track circuits under fluctuations of ballast resistance. Science and Transport Progress , [S. l.], n. 6(48), p. 23–31, 2013. DOI: 10.15802/stp2013/19674. Disponível em: https://stp.ust.edu.ua/article/view/19674. Acesso em: 23 jul. 2024.