1. Alexander, M., Microbial Ecology, John Wiley and Sons, Inc., Toronto 1971.
2. Allard, B., Larson, S. A., Tullborg, E. L., and Wikberg, P., Chemistry of deep groundwaters from granite bedrock. KBS-TR-83-59, 1983.
3. Avogardro, A., and de Marsily, G., The role of colloids in nuclear waste disposal, in: Materials Research Society 26, pp. 495–505. Ed. G. L. McVay. Scientific Basis for Nuclear Waste Management VII. New York 1983.
4. Ballester, A., Bláquez, M., González, F., and Barrill, M. A., Bioleaching of a lead matte, in: Bio Hydro Metallurgy, Proc. International Symposium Warwick 1987, pp. 508–509. Eds P. R. Norris and D. P. Kelly. Science and Technology Letters, Kew 1988.
5. Beveridge, T. J., Role of cellular design in bacterial metal accumulation and mineralisation. A. Rev. Microbiol.43 (1989) 147–171.