1. 1) L.-j. Xu, L. Li, L.-x. Chen, X.-h. Li and Z.-l. Liu: Sichuan Nonferrous Metal., 1 (2011), 1.
2. 2) H. G. Du: Blast Furance Smelting Principle for Vanadium Titanium Magnetite, Science Press, Beijing, (1996), 278.
3. 3) L. Zhang and S. Jahanshahi: 4th Australian Melt Chemistry Symp., CSIRO Minerals, Australia, (2002), 3.
4. 4) N. Saito, N. Hori, K. Nakashima and K. Mori: Metall. Trans. B, 34 (2003), 509.
5. 5) A. Shankar, M. Görnerup, S. Seetharaman and A. K. Lahiri: Metall. Trans. B, 37 (2006), 941.