Yacine Gasmi Ahmad-Reza Sadeghi Patrick Stewin Martin Unger Marcel Winandy Rani Husseiki Christian Stüble Flexible and secure enterprise rights management based on trusted virtual domains. 71-80 2008 STC http://doi.acm.org/10.1145/1456455.1456467 conf/ccs/2008stc db/conf/ccs/stc2008.html#GasmiSSUWHS08