ZAKEY, A. S., M. ABDEL WAHAB, J. B. C. PETTERSSON, M. J. GATARI, and M. HALLQUIST. 2009. “Seasonal and Spatial Variation of Atmospheric Particulate Matter in a Developing Megacity, the Greater Cairo, Egypt”. Atmósfera 21 (2). https://www.revistascca.unam.mx/atm/index.php/atm/article/view/8601.