<?xml version="1.0"?>
<dblp>
<inproceedings key="conf/dbsec/GudesSF90" mdate="2002-01-03">
<author>Ehud Gudes</author>
<author>Haiyan Song</author>
<author>Eduardo B. Fern&#225;ndez</author>
<title>Evolution of Negative, Predicate, and Instance-based Authorization in Object-Oriented Databases.</title>
<pages>85-98</pages>
<year>1990</year>
<booktitle>DBSec</booktitle>
<url>db/conf/dbsec/dbsec90.html#GudesSF90</url>
</inproceedings>
</dblp>
