1. R. Inoue, X.P. Zhang, H. Li and H. Suito: Transactions ISIJ, Vol. 27(1987), pp.946-950.
2. W. Ma, X. Zhong, Z.Q. He and Y.L. Yang: Chinese Journal of Rare Metals, Vol. 20, (1995) No. 4, pp.254-258. (In Chinese).
3. J. Fang, Z. R. Wang, J.Y. Zhang, Y.G. Zhang, Y.H. Huang and X.G. Li: Jourmal of Northeastern University (Natural Science), Vol. 17(1996), No. 1, 35-40. (In Chinese).
4. Q. Wang, Z.X. Yang, J.M. Tian, W.Z. Li and J.F. Sun: Sintering and Pelletizing, Vol. 21(1996), No. 3, pp.37-39. (In Chinese).
5. C.W. Bale, P. Chartrand, S.A. Decterov, G. Eriksson, K. Hack, R.B. Mahfoud, J. Melançon, A.D. Pelton and S. Petersen: Calphad Journal, Vol. 62(2002), pp.189-228.