@InProceedings {bcddfps-sec2009,
author = {C. Blundo and S. Cimato and S. {De Capitani di Vimercati} and A. {De Santis} and S. Foresti and S. Paraboschi and P. Samarati},
booktitle = {Proc. of the 24th IFIP TC-11 International Information Security Conference (SEC 2009)},
title = {Efficient Key Management for Enforcing Access Control in Outsourced Scenarios},
address = {Cyprus, Greece},
month = {May},
day = {18-20},
year = {2009}
}