1. W. Haupin, “History of Electrical Energy Consumption by Hall-Heroult Cells,” Hall-Heroult Centennial, 1886–1986 (Warrendale, PA: TMS, 1986), pp. 106–113.
2. N.E. Richards, “Evolution of Electrolytes for Hall-Heroult Cells,” ibid., pp. 114–119.
3. B.J. Welch, “Gaining That Extra 2 Percent Current Efficiency,” op. cit. 1, pp. 120–129.
4. D. Belitskus, “Carbon Electrodes in Hall-Heroult Cell: A Century of Progress,” op. cit. 1, pp. 130–143.
5. G.T. Holmes, D.C. Fischer, J.F. Clark and W.D. Ludwig, “Development of Large Prebaked Anode Cells by Alcoa,” Light Metals 1980 (Warrendale, PA: TMS, 1980), pp. 401–411.