@InCollection {dfs.aacsptmdm2007,
author = {S. {De Capitani di Vimercati} and S. Foresti and P. Samarati},
editor = {M. Petkovic and W. Jonker},
booktitle = {Security, Privacy and Trust in Modern Data Management},
title = {Authorization and Access Control},
publisher = {Springer-Verlag},
year = {2007}
}