“Determination of Sources of Air Pollutants in a Rural Area of Background Unix through Models - Pmf Measures Applied to Time in 3 Years 64 Covs”. REVISTA AMBIENTAL AGUA, AIRE Y SUELO, vol. 4, no. 2, Dec. 2013, pp. 40-55, https://doi.org/10.24054/aaas.v4i2.2025.