@InProceedings {bsj.ccs93bis,
    author = {E. Bertino and P. Samarati and S. Jajodia},
    booktitle = {Proc. of the First ACM Conference on Computer and Communications Security},
    title = {High Assurance Discretionary Access Control for Object Bases},
    address = {Fairfax, VA},
    pages = {140-150},
    month = {November},
    year = {1993}
}