1. Bautista, R. G., Flett, D. S., and Ollerenshaw, R. J., “Design Considerations and New Developments in Electrohydrometallurgy: a Review,” Warren Spring Lab. Rep., Lr 244 (ME), 1976, 20 pp.
2. Tschopp, Th., “Modern Conceptional Design of Aluminum Smelters,” Light Metals 1977, Vol. 1, edited by Higbie, K.B., TMS-AIME, New York, N.Y., 1977, pp. 51–67.
3. Ettel, V. A., “Energy Requirements in Electrolytic Winning and Refining of Metals,” CIM Bull., Vol. 70, No. 783, July 1977, pp. 179–187.
4. Gordon, A. R., “Improved Use of Raw Material, Human and Energy Resources in the Extraction of Zinc,” Advances in Extractive Metallurgy 1977, edited by Jones, M. J., Instn. Min. Metall, London, 1977, pp. 153–160.
5. Gray, P. M. J., “A Cost Basis for Development of Primary Copper Production Processes,” Advances in Extractive Metallurgy 1977, edited by Jones, M. J., Instn. Min. Metall., London, 1977, pp. 153–160.