MÁRQUEZ DÍAZ, L. G. Willingness to pay for a high-speed passenger rail service between Barranquilla and Cartagena. Revista EIA / English version, [S. l.], v. 13, n. 26, 2017. Disponível em: https://eia.metarevistas.org/index.php/Reveiaenglish/article/view/1100. Acesso em: 7 jun. 2025.