ÉDES, Balázs. Opportunities and potential of transportation on the Danube. REGIONAL AND BUSINESS STUDIES, [S. l.], v. 3, n. 2 Suppl., p. 25–37, 2011. Disponível em: https://journal.uni-mate.hu/index.php/rbs/article/view/541. Acesso em: 26 apr. 2025.