Ribadeneira Páez, M. G., O. S. Vega Perez, and J. L. Cruz Pierard. “Market Share Analysis: International Direct Offer to and from Bogota’s International Airport El Dorado (2017-2019)”. Universidad Ciencia Y Tecnología, Vol. 25, no. 110, Aug. 2021, pp. 58-64, doi:10.47460/uct.v25i110.476.