William Marczak David Zook Wenchao Zhou Molham Aref Boon Thau Loo Declarative Reconfigurable Trust Management. 2009 CIDR http://www-db.cs.wisc.edu/cidr/cidr2009/Paper_11.pdf conf/cidr/2009 db/conf/cidr/cidr2009.html#MarczakZZAL09