RT Journal T1 A1 LUO Ming-Hua, SHAO Zhen-Wen, OUYang-Jun-Lin PB Journal of Guizhou University of Finance and Economics FD 2010-11-15 YR 2010 JF Journal of Guizhou University of Finance and Economics JO Journal of Guizhou University of Finance and Economics VO 28 IS 6 SP 85 DO K1 LK {https://gcxb.gufe.edu.cn/EN/article/article_8404.shtml}