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3. Analysis of the change in atmosphere urban formaldehyde and photochemistry activity as a result of using methyl-t-butyl ether (MTBE) as an additive in gasolines of the Metropolitan Area of Mexico City;Bravo;Atmospheric Environment,1991
4. Bravo, H.A., Perrin, F.G., Sosa, R.E., Torres, R.J., 1989. Results of an air pollution strategy (lead reduction in gasoline) on the air quality of Mexico City. Eighth World Clean Air Congress. Man and his Ecosystem, Vol. 4. Elseiver Science Publishers B.V., The Netherlands, pp. 31–37.
5. Photochemical air pollution situation in Mexico City Metropolitan Area;Bravo,1994