@InProceedings {acgjs-dbsec2008,
    author = {{C.A.} Ardagna and S. {De Capitani di Vimercati} and T. Grandison and S. Jajodia and P. Samarati},
    booktitle = {Proc. of the 22nd Annual IFIP WG 11.3 Working Conference on Data and Applications Security (DBSec 2008)},
    title = {Regulating Exceptions in Healthcare using Policy Spaces},
    address = {London, U.K.},
    month = {July},
    day = {13-16},
    year = {2008}
}