1. S.S. Pan, M.Y. Zhu, and J.A. Zhou: China Metall., 2007, vol. 7, pp. 41-3.
2. M.Y. Zhu, J.A. Zhou, S.S. Pan, and J. Sha: Chinese Patent, CN200510047980.1, 2006.
3. M.Y. Zhu, J.A. Zhou, S.S. Pan, and J. Sha: Chinese Patent, CN200520094580.1, 2007.
4. L.R. Farias and G.A. Irons: Metall. Trans. B, 1985, vol. 16B, pp. 211-25.
5. D.E. Langberg and M. Nilmani: Metall. Mater. Trans. B, 1994, vol. 25B, pp. 653-60.