Ventosa-SantaulàriaD., ElbittarA., MatíasP., and Aguilar HuertaC. “Saturation Levels of Mobile Telecommunications Markets and Optimal Termination Rates”. Estudios Económicos, Vol. 35, no. 2, July 2020, pp. 331-55, doi:10.24201/ee.v35i2.406.