Ryan Layfield Murat Kantarcioglu Bhavani M. Thuraisingham Enforcing Honesty in Assured Information Sharing Within a Distributed System. 113-128 2007 conf/dbsec/2007 DBSec http://dx.doi.org/10.1007/978-3-540-73538-0_10 db/conf/dbsec/dbsec2007.html#LayfieldKT07