@InProceedings {dfjps-icdcs2008,
    author = {S. {De Capitani di Vimercati} and S. Foresti and S. Jajodia and S. Paraboschi and P. Samarati},
    booktitle = {Proc. of the 28th International Conference on Distributed Computing Systems (ICDCS 2008)},
    title = {Controlled Information Sharing in Collaborative Distributed Query Processing},
    address = {Beijing, China},
    month = {June},
    day = {17-20},
    year = {2008}
}