Current situation of the transportation systems in the city of Quito, Ecuador: An improvement proposal. TRIM. Tordesillas, revista de investigación multidisciplinar, [S. l.], n. 16, p. 5–40, 2019. DOI: 10.24197/trim.16.2019.5-40. Disponível em: https://revistas.uva.es/index.php/trim/article/view/3614. Acesso em: 17 jan. 2026.