%0 Journal Article %T ÐÅÏ¢¼ìË÷ %J ½à¾»Ãº¼¼Êõ %D 1999 %U http://www.jjmjs.com.cn/WKD/WebPublication/paperDigest.aspx?paperID=7abafd86-95d4-4f21-abef-a5680d4b0394