1. A.K. Biswas and W.G. Davenport: Extractive Metallurgy of Copper, 3rd ed., Pergamon, Oxford, United Kingdom, 1994, p. 92.
2. A. Yazawa, Y. Takede, and Y. Waseda: Can. Metall. Q., 1981, vol. 20, pp. 129–34.
3. Y. Takede, S. Nakazawa, and A. Yazawa: Can. Metall. Q., 1980, vol. 19, pp. 297–305.
4. K. Yamaguchi, F. Ogino, and E. Kimura: EPD Congr. 1994, San Francisco, CA, 1994, TMS, Warrendales PA, 1994, pp. 803–12.
5. G.R. Rigby: Trans. TMS-AIME, 1962, vol. 224, pp. 887–92.