1. J.H. Schloen: inThe Electrorefining and Winning of Copper, J.E. Hoffmann, R.G. Bautista, V.A. Ettel, V. Kudryk, and R.J. Wesely, eds., TMS, Warrendale, PA, 1987, pp. 3–18.
2. O. Forsen and M.H. Tikkanen:Scand. J. Metall., 1981, vol. 10, pp. 109–14.
3. O. Forsen and K. Lilius: inThe Electrorefining and Winning of Copper, J.E. Hoffmann, R.G. Bautista, V.A. Ettel, V. Kudryk, and R.J. Wesely, eds., TMS, Warrendale, PA, 1987, pp. 47–69.
4. T.T. Chen and J.E. Dutrizac:Can. Metall. Q., 1988, vol. 27, pp. 91–96.
5. T.T. Chen and J.E. Dutrizac:Can. Metall. Q., 1989, vol. 28 (2), pp. 127–34.