@InProceedings {dqs.sec98,
author = {S. Dawson and S. Qian and P. Samarati},
booktitle = {Proc. of the 14th IFIP TC-11 International Conference on Information Security},
title = {Secure Interoperation of Heterogeneous Systems: A Mediator-Based Approach},
address = {Vienna, Budapest},
month = {August},
year = {1998}
}