1. E. R. Cole, A. Y. Lee, and D. L. Paulson, “Electrolytic Method for Recovery of Lead From Scrap Batteries,” U.S. Department of the Interior, Bureau of Mines, Report of Investigations 8602, (1981).
2. E. R. Cole, A. Y. Lee, and D. L. Paulson, “Recovery of Lead From Battery Sludge by Electrowinning,” Journal of Metals, 35(8), (1983), pp. 42–46.
3. T. A. Phillips, “Preliminary Economic and Technical Evaluation of an Electrolytic Process to Recovery Lead From Scrap Batteries,” BuMines, Nov. 1981, 23 pp. Available for consultation at the Rolla Research Center, Bureau of Mines, Rolla, Mo.
4. L. L. Smith, R. G. Sandberg, and E. R. Cole, U. S. Department of the Interior, U.S. Patent No. 4,159,231, June 16, 1979.
5. A. Y. Lee, E. R. Cole, Jr., and D. L. Paulson, “Electrolytic Method for Recovery of Lead From Scrap Batteries: Scale-Up Study Using 20-Liter Multielectrode Cell,” U.S. Department of the Interior, Bureau of Mines, Report of Investigations 8857, (1984).