Ana Ferreira, David W. Chadwick, Pedro Farinha, Ricardo João Cruz Correia, Gansen Zhao, Rui Chilro, Luis Antunes. How to Securely Break into RBAC: The BTG-RBAC Model. In Twenty-Fifth Annual Computer Security Applications Conference, ACSAC 2009, Honolulu, Hawaii, 7-11 December 2009. pages 23-31, IEEE Computer Society, 2009. [doi]
Abstract is missing.