1. Aksu, Z., and Kutsal, T., 1991, “A Bioseparation process for lead(II) ions from waste water by using C. vulgaris,” J. Chem. Tech. Biotechnol., 52, pp. 109–118.
2. Balakrishnan, M., Modak, J.M., Natarajan, K.A., and Naik, J.S.G., 1994, “Biological uptake of precious and base metals from gold-process cyanide effluents.” Mine. and Metall. Proc., 11, pp. 197–202.
3. Beveridge, T.J., and Murray, R.G.E., 1980, “Sites of metal deposition in the cell walls of Bacillus subtilis,” Journal of Bacteriology, 141, pp. 876–887.
4. Briefly, J.A., Briefly, C.L., Decker, R.F., and Goyak, G.M., 1987, Treatment of microorganisms with alkaline solution to enhance metal uptake, US patent 4,690,984.
5. Briefly, J.A., Goyak, G.M., and Briefly, C.L., 1986, “Considerations for commercial use of natural products for metal recovery”, in Immobilization of Ions by Biosorption, H. Eccles and S. Hunt, eds., Ellis Horwood, Chichester, pp. 201–218.