KURGAN, M. B.; CHERNYISHOVA, O. S. Additional outlays for railway when speed limits appear on steep long ascents. Science and Transport Progress , [S. l.], n. 38, p. 114–116, 2011. DOI: 10.15802/stp2011/6821. Disponível em: https://stp.ust.edu.ua/article/view/6821. Acesso em: 26 apr. 2024.