1. Babich, H., and Stotzky, G. 1980. Physicochemical Factors That Affect Toxicity of Heavy Metals to Microbes in Aquatic Habitats. In: Colwell R. R., and Foster, J. (eds.), Proceedings of the ASM Conference, Aquatic Microbial Ecology, University of Maryland Sea Grant Publication, pp. 181–203. College Park, Maryland.
2. Babich, H., and Stotzky, G. 1983. Influence of Chemical Speciation of Heavy Metals. In: Nriagu, J. O. (ed.), Aquatic Toxicology, Advances in Environmental Science and Technology, Vol. 13, pp. 3–37. John Wiley and Sons, New York, NY.
3. Black, J. A. 1973. The significance of Physicochemical Variables in Aquatic Bioassays of Heavy Metals. In: Glass, G. E. (ed.), Bioassay Techniques and Environmental Chemistry, pp. 259–275. Ann Arbor Science, Ann Arbor, Michigan.
4. Borgman, U., 1983. Metal Speciation and Toxicity of Free Metal Ions to Aquatic Biota. In: Nriagu, J. O. (ed.), Aquatic Toxicology, Advances in Environmental Science and Technology, Vol. 13, pp. 47–73. John Wiley and Sons, New York, NY.
5. Brown, D., and Allison, J. 1987. MINTEQA1 Equilibrium Metal Speciation Model: A User’s Manual. United States Environmental Protection Agency, Office of Research and Development, Athens, Georgia.