K. Suzanne Barber Karen Fullam Joonoo Kim Challenges for Trust, Fraud and Deception Research in Multi-agent Systems. 8-14 http://springerlink.metapress.com/openurl.asp?genre=article&issn=0302-9743&volume=2631&spage=8 2002 conf/atal/2002lncs Trust, Reputation, and Security db/conf/atal/aamas2002lncs.html#BarberFK02