Tine Verhanneman Frank Piessens Bart De Win Wouter Joosen Uniform Application-level Access Control Enforcement of Organizationwide Policies. 431-440 2005 conf/acsac/2005 ACSAC http://doi.ieeecomputersociety.org/10.1109/CSAC.2005.59 db/conf/acsac/acsac2005.html#VerhannemanPWJ05