C. Loyola Gómez and E. Albornoz Del Valle, “Flow, mobility and levels of accesibility in the city centre of Chillan: Proposals for improvement through SIG”, RU, vol. 12, no. 19, pp. 17–27, May 2009, Accessed: Oct. 16, 2026. [Online]. Available: https://revistas.ubiobio.cl/index.php/RU/article/view/332