@InProceedings {cddfs-iwpdm2005,
    author = {P. Ceravolo and E. Damiani and S. {De Capitani di Vimercati} and C. Fugazza and P. Samarati},
    booktitle = {Proc. of the International Workshop on Privacy Data Management},
    title = {Advanced Metadata for Privacy-Aware Representation of Credentials},
    address = {Tokyo, Japan},
    month = {April},
    day = {8-9},
    year = {2005}
}