title: a unified framework for enforcing multiple access control policies. authors: v. s. subrahmanian , elisa bertino , pierangela samarati , sushil jajodia. venue: sigmod conference. year: 1997.0
title: a unified framework for enforcing multiple access control policies sushil jajodia , pierangela samarati , v. s. subrahmanian , eliza bertino 1997. authors: nan. venue: international conference on management of data. year: nan