D. Kulkarni, and A. Tripathi. SACMAT '08: Proceedings of the 13th ACM symposium on Access control models and technologies, page 113--122. New York, NY, USA, ACM, (2008)
M. LeMay, R. Nelli, G. Gross, and C. Gunter. HICSS '08: Proceedings of the Proceedings of the 41st Annual Hawaii International Conference on System Sciences, page 174. Washington, DC, USA, IEEE Computer Society, (2008)