Covid 19 quarantine’s effects on air quality in Bogota and twenty cities world wide statistical analysis (january to july 2020) (G. A. Rincón Rueda & J. A. Murad Pedraza, Trans.). (2023). Revista EIA, 20(40), 4021 pp. 1-33. https://doi.org/10.24050/reia.v20i40.1701