Xinyu Zhang Nianlong Luo XiangCun Wu Dongxing Jiang JianWei Zhang DongXue Liu Community Knowledge Building Environment with Concept of KBC. 440-448 http://springerlink.metapress.com/openurl.asp?genre=article&issn=0302-9743&volume=3143&spage=440 2004 conf/icwl/2004 ICWL db/conf/icwl/icwl2004.html#ZhangLWJZL04