Oscar Javier Herrera Ochoa and  Ivan Dario Romero Fonseca,  Model of Transhipment and Routing Applied to the Cargo Sector in Small and Medium Enterprises of Bogotá, Colombia .   journal   = {International Journal of Industrial and Manufacturing Engineering}, [online]. World Academy of Science, Engineering and Technology.
    April 2018, vol. 137(5). 622 - 628
    [viewed 23 January 2022]. Available from: https://publications.waset.org/pdf/10009009.