@InCollection {dfjs.acploedmds2007,
author = {S. {De Capitani di Vimercati} and S. Foresti and S. Jajodia and P. Samarati},
editor = {T. Yu and S. Jajodia},
booktitle = {Secure Data Management in Decentralized Systems},
title = {Access Control Policies and Languages in Open Environments},
publisher = {Springer-Verlag},
year = {2007}
}