by CAILu-yun(蔡路昀), XUYan-peng(徐言朋), JIANGPing-ping(蒋萍萍), DINGPing(丁平), YAOXiao-hua(姚小华), XUXiang-rong(徐向荣), WANGGuo-bing(王国兵)
Published in Zhejiang da xue xue bao. Journal of Zhejiang University. Sciences edition. Li xue ban (01.11.2007)