1. Costa, M., Reg. Toxicol. Pharmacol., 2003, vol. 188, pp. 1–5.
2. Chang Jun-ling, Liu Hong-bo, Zharg Hong-bo, et al., Carbon Technol., 2001, no. 5, pp. 20–30.
3. Chainalov, A.I. and Molebnov, G.V., Abstracts of Papers, Ekologicheskie problemy i ikh mezhdistsiplinarnoe issledovanie (Ecological Problems and Its Interdisciplinal Research), Astrakhan: TsNTEP, May 29, 1997, pp. 58–59.
4. Zverev, M.P., Abdulkhakova, Z.Z., Polovikhina, L.A., et al., Ekol. Prom-st. Ross., 2002, April, pp. 16–18.
5. Beukes, J.P., Pienaar, J.J., Lachmann, G., and Giesekke, E.W., Water. S. Afr., 1999, vol. 25, no. 3, pp. 363–370.