@InProceedings {bbs.nspw94,
    author = {E. Bertino and C. Bettini and P. Samarati},
    booktitle = {Proc. of the 1994 ACM SIGSAC New Security Paradigms Workshop},
    title = {A Discretionary Access Control Model with Temporal Authorizations},
    address = {Little Compton, RI},
    pages = {102-107},
    month = {August},
    year = {1994}
}