1. D.X. Huang, Vanadium Extracting and Steelmaking, Metallurgy Industry Press, Beijing, 2000, p.48.
2. L.J. Lozano and D. Juan, Leaching of vanadium from spent sulphuric acid catalysts, Miner. Eng., 14(2001), No.5, p.543.
3. C.K. Gupta, The aluminothermic process for vanadium production, [in] Vanadium-Geology, Processing and Applications, Montreal, 2002, p.205.
4. X.Y. Xin and S.J. Li, Progress in the research of vanadium metal preparation, Sichuan Nonferrous Met., 11(2009), No.1, p.11.
5. S.Z. Yang, Vanadium Metallurgy, Metallurgy Industry Press, Beijing, 2010, p.136.