1. Zereini, F., Alt, F. (Eds.) Anthropogenic Platinum-Group Element Emission. Their Impact on Man and Environment, Springer-Verlag, Berlin, Heidelberg, Germany, (2000)
2. Wei, C., Morrison, G. M., Sci. Total. Environ., 1994, vol. 146–147, p. 169.
3. Helmers, E., Mergel, N., Fresenius J. Anal. Chem., 1998, vol. 362, p. 522.
4. Rauch, S., Morrison, G.M., An Environmental Case History of Platinum Group Metals. In: Cornelis R., Crews H., Donard O., Ebdon L., Chen Y., editors. Trace Element Speciation for Environment, Food and Health. Cambridge (UK): The Royal Society of Chemistry; 176 (2001).
5. Boch, K., Schuster, M., Risse, G., Schwarzer, M., Anal. Chim. Acta, 2002, vol. 459, p. 257.