@conference{EURECOM+1958,
  author = {Bagga, Walid and  Molva, Refik},
  title = {Collusion-free policy-based encryption},
  booktitle = {ISC 2006, 9th International Conference on Information Security, August 30-September 2, 2006, Samos, Greece / Also published in Lecture Notes in Computer Science, Volume 4176},
  year = {2006},
  editor = {Springer},
  address = {Samos},
  note = {©  Springer. Personal use of this material is permitted. The definitive version of this paper was published in ISC 2006, 9th International Conference on Information Security, August 30-September 2, 2006, Samos, Greece / Also published in Lecture Notes in Computer Science, Volume 4176 and is available at : http://dx.doi.org/10.1007/11836810\_17},
}