BOUALI, S.; DOUHA, S.; KHADRI, N. To what extent is air freight affected by the Corona virus pandemic?. Journal of Sustainable Development of Transport and Logistics, [S. l.], v. 5, n. 2, p. 98–108, 2020. DOI: 10.14254/jsdtl.2020.5-2.9. Disponível em: https://jsdtl.sciview.net/index.php/jsdtl/article/view/112. Acesso em: 16 jul. 2026.