Gunnar Aastrand Grimnes Peter Edwards Alun D. Preece Learning Meta-descriptions of the FOAF Network. 152-165 http://springerlink.metapress.com/openurl.asp?genre=article&issn=0302-9743&volume=3298&spage=152 2004 conf/semweb/2004 International Semantic Web Conference db/conf/semweb/iswc2004.html#GrimnesEP04