Claudine Conrado, Milan Petkovic, Willem Jonker. Privacy-Preserving Digital Rights Management. In Willem Jonker, Milan Petkovic, editors, Secure Data Management, VLDB 2004 Workshop, SDM 2004, Toronto, Canada, August 30, 2004, Proceedings. Volume 3178 of Lecture Notes in Computer Science, pages 83-99, Springer, 2004. [doi]