Berrio, Laura, Víctor Cantillo, and Julian Arellana. “Strategic Modelling of Passenger Transport in Waterways: The Case of the Magdalena River”. Transport 34, no. 2 (March 18, 2019): 215-224. Accessed November 18, 2019. https://journals.vgtu.lt/index.php/Transport/article/view/8943.