KUSTER, Hansjorg. Railways: Gateways Between East and West in Europe. Promet - Traffic&Transportation, [S. l.], v. 15, n. 4, p. 215–221, 2003. Disponível em: https://traffic2.fpz.hr/index.php/PROMTT/article/view/2034. Acesso em: 27 aug. 2025.