PETRENKO, E. A. The problem of monopoly in rail transport. Science and Transport Progress , [S. l.], n. 40, p. 296–300, 2012. DOI: 10.15802/stp2012/7179. Disponível em: https://stp.ust.edu.ua/article/view/7179. Acesso em: 28 apr. 2024.