On the need for structuring of the Integrated Public Transport System -IPTS of Bogotá, Colombia as a Viable System . Revista de Investigaciones Universidad del Quindío, [S. l.], v. 34, n. 2, p. 440–461, 2022. DOI: 10.33975/riuq.vol34n2.1070. Disponível em: https://ojs.uniquindio.edu.co/ojs/index.php/riuq/article/view/1070. Acesso em: 25 jun. 2026.