1. K. Grjotheim, W. E. Haupin, and B.J. Welch:Light Metals, Proceedings of Sessions 115th AIME Annual Meeting, H. O. Bonner, ed., New York, NY, 1985, pp. 679–94.
2. J. W. Evans, Y. Zundelevich, and D. Sharma:Metall. Trans. B, 1981, vol. 12B, pp. 353–60.
3. J. Thonstad and Y. Liu:Light Metals, Proceedings of Sessions 110th AIME Annual Meeting, G. M. Bell, ed., Chicago, IL, 1981, pp. 303–12.
4. T. Utigard and J.M. Toguri:Metall. Trans. B, 1985, vol. 16B, pp. 333–38.
5. K. Grjotheim, C. Krohn, M. Malinovsky, K. Matiasovsky, and J. Thonstad:Aluminum Electrolysis, 2nd ed., p. 146, Aluminum-Verlag, Düsseldorf, Germany, 1982.