@inproceedings{dawson-security98,
    AUTHOR = {{S.} Dawson and {S.} Qian and and {P.} Samarati},
    TITLE = {Secure Interoperation of Heterogeneous Systems: {A} Mediator-Based Approach},
    BOOKTITLE = {Proceedings of the 14th {IFIP} {TC-11} International Conference on Information Security},
    YEAR = {1998},
    PUBLISHER = {Chapman and Hall},
    URL = {http://www.sdl.sri.com/papers/373/}
}