Lobnig, R. E., Siconolfi, D. J., Maisano, J., Grundmeier, G., Streckel, H., Frankenthal, R. P., et al. (1996). Atmospheric Corrosion of Aluminum in the Presence of Ammonium Sulfate Particles. Journal Electrochem. Soc., 143: 4, pp. 1175-1182.