Frédéric Cuppens, Nora Cuppens-Boulahia. Stratification Based Model for Security Policy with Exceptions and Contraries to Duty. In Pierangela Samarati, Indrajit Ray, Indrakshi Ray, editors, From Database to Cyber Security - Essays Dedicated to Sushil Jajodia on the Occasion of His 70th Birthday. Volume 11170 of Lecture Notes in Computer Science, pages 78-103, Springer, 2018. [doi]
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