RIETVELD, Piet. Barrier Effects of Borders: Implications for BorderCrossing Infrastructures. European Journal of Transport and Infrastructure Research, [S. l.], v. 12, n. 2, 2012. DOI: 10.18757/ejtir.2012.12.2.2959. Disponível em: https://journals.open.tudelft.nl/ejtir/article/view/2959. Acesso em: 27 apr. 2024.