FORGÁCS, Anna; SZABÓ, Szabolcs. Rail as a natural monopoly and possibilities of its regulation. Studia Mundi – Economica, [S. l.], v. 2, n. 2, p. 50–60, 2015. DOI: 10.18531/Studia.Mundi.2015.02.02.50-60. Disponível em: https://journal.uni-mate.hu/index.php/stm/article/view/3158. Acesso em: 23 feb. 2025.