@Article {ADPPSV.TSC2010,
    author = {C. Ardagna and S. {De Capitani di Vimercati} and S. Paraboschi and E. Pedrini and P. Samarati and M. Verdicchio},
    title = {Expressive and Deployable Access Control in Open Web Service Applications},
    journal = {IEEE Transactions on Service Computing (TSC)},
    volume = {4},
    number = {2},
    pages = {96--109},
    month = {April-June},
    year = {2011}
}