Leo Obrst Patrick Cassidy Steve Ray Barry Smith Dagobert Soergel Matthew West Peter Yim The 2006 Upper Ontology Summit Joint Communiqué. 203-211 2006 1 Applied Ontology 2 http://iospress.metapress.com/openurl.asp?genre=article&issn=1570-5838&volume=1&issue=2&spage=203 db/journals/ao/ao1.html#ObrstCRSSWY06