<?xml version="1.0"?>
<dblp>
<inproceedings key="conf/sacmat/ZhangPPS04" mdate="2006-02-15">
<author>Xinwen Zhang</author>
<author>Jaehong Park</author>
<author>Francesco Parisi-Presicce</author>
<author>Ravi S. Sandhu</author>
<title>A logical specification for usage control.</title>
<pages>1-10</pages>
<year>2004</year>
<crossref>conf/sacmat/2004</crossref>
<booktitle>SACMAT</booktitle>
<ee>http://doi.acm.org/10.1145/990036.990038</ee>
<url>db/conf/sacmat/sacmat2004.html#ZhangPPS04</url>
</inproceedings>
</dblp>
