UMANOV, M. I.; PATLASOV, A. M. Improving the estimation of track condition using standard deviations of its geometrical parameters. Science and Transport Progress , [S. l.], n. 40, p. 109–114, 2012. DOI: 10.15802/stp2012/7018. Disponível em: https://stp.ust.edu.ua/article/view/7018. Acesso em: 3 may. 2024.