@inproceedings{Guarnieri:2013:NRA:2462410.2462426,
 author = {Guarnieri, Marco and Arrigoni Neri, Mario and Magri, Eros and Mutti, Simone},
 title = {On the Notion of Redundancy in Access Control Policies},
 booktitle = {Proceedings of the 18th ACM Symposium on Access Control Models and Technologies},
 series = {SACMAT '13},
 year = {2013},
 isbn = {978-1-4503-1950-8},
 location = {Amsterdam, The Netherlands},
 pages = {161--172},
 numpages = {12},
 url = {http://doi.acm.org/10.1145/2462410.2462426},
 doi = {10.1145/2462410.2462426},
 acmid = {2462426},
 publisher = {ACM},
 address = {New York, NY, USA},
 keywords = {access control, minimization, redundancy},
}