@article{QIU Xun-Li:74, author = {QIU Xun-Li, ZHANG Zhi-Qiang}, title = {}, publisher = {Journal of Guizhou University of Finance and Economics}, year = {2010}, journal = {Journal of Guizhou University of Finance and Economics}, volume = {28}, number = {5}, eid = {74}, numpages = {0}, pages = {74}, keywords = {}, url = {https://gcxb.gufe.edu.cn/EN/abstract/article_8384.shtml}, doi = {} }