SHAHRAKI, A. A. Improvement and development of the railroad transportation, reflection of the case of Iran. Journal of Sustainable Development of Transport and Logistics, [S. l.], v. 4, n. 2, p. 37–49, 2019. DOI: 10.14254/jsdtl.2019.4-2.4. Disponível em: https://jsdtl.sciview.net/index.php/jsdtl/article/view/82. Acesso em: 26 jun. 2026.