@InProceedings {dds.oak99,
author = {S. Dawson and S. {De Capitani di Vimercati} and P. Samarati},
booktitle = {Proc. of the 20th IEEE Symposium on Security and Privacy},
title = {Specification and Enforcement of Classification and Inference Constraints},
address = {Oakland, CA, USA},
month = {May},
year = {1999}
}