hmm,may be you can download this artical
http://sess.pku.edu.cn/esf/1994-2005pdf/200404/040424.pdf.
or
http://www.cags.ac.cn/cags/dxqy/1994-2005pdf/200404/040424.pdf
Google scholar search link is http://scholar.google.com/scholar?hl=en&q=%E6%AD%A3%E6%96%AD%E5%B1%82%E4%BD%8D%E7%A7%BB+%E9%95%BF%E5%BA%A6%E5%85%B3%E7%B3%BB%E5%8F%8A%E5%85%B6%E7%A0%94%E7%A9%B6%E6%84%8F%E4%B9%89&btnG=&as_sdt=1%2C5&as_sdtp=
http://sess.pku.edu.cn/esf/1994-2005pdf/200404/040424.pdf.
or
http://www.cags.ac.cn/cags/dxqy/1994-2005pdf/200404/040424.pdf
Google scholar search link is http://scholar.google.com/scholar?hl=en&q=%E6%AD%A3%E6%96%AD%E5%B1%82%E4%BD%8D%E7%A7%BB+%E9%95%BF%E5%BA%A6%E5%85%B3%E7%B3%BB%E5%8F%8A%E5%85%B6%E7%A0%94%E7%A9%B6%E6%84%8F%E4%B9%89&btnG=&as_sdt=1%2C5&as_sdtp=