1. Wang D. and Zhang P., Metall. Anal., 2003, 23(1): 66–67
2. Qu Y. and Wang Q., J. Mod. Lab. Med., 2005, 20(3): 39–40
3. Huang D., Liao S., Liu J., Zhang X. and Tong Y., Ferroalloys, 2005, 36(3): 44–47
4. Liu L., Xiang G. and Li Z., J. JiuJiang Univ. (Natural Science), 2004, 3(6): 619–621
5. Bao S., Chin. J. Anal. Lab., 2004, 19(3): 30–32