Hai Zhuge Jie Liu Liang Feng Chao He Semantic-Based Query Routing and Heterogeneous Data Integration in Peer-to-Peer Semantic Link Networks. 91-107 http://springerlink.metapress.com/openurl.asp?genre=article&issn=0302-9743&volume=3226&spage=91 2004 conf/icsnw/2004 ICSNW db/conf/icsnw/icsnw2004.html#ZhugeLFH04