D. Malkhi, N. Nisan, B. Pinkas, and Y. Sella. Proceedings of the 13th USENIX Security Symposium, page 287--302. Berkeley, CA, USA, USENIX Association, (2004)
S. Jha, L. Kruger, and V. Shmatikov. Proceedings of the 2008 IEEE Symposium on Security and Privacy, page 216--230. Washington, DC, USA, IEEE Computer Society, (2008)
A. Ben-David, N. Nisan, and B. Pinkas. Proceedings of the 15th ACM Conference on Computer and Communications
Security, page 257--266. New York, NY, USA, ACM, (2008)