STEAD, Dominic. European Perspectives: The European Transport White Paper. European Journal of Transport and Infrastructure Research, [S. l.], v. 1, n. 4, 2001. DOI: 10.18757/ejtir.2001.1.4.3507. Disponível em: https://journals.open.tudelft.nl/ejtir/article/view/3507. Acesso em: 3 jul. 2024.