<?xml version="1.0"?>
<dblp>
<article key="journals/cacm/YuY91" mdate="2003-11-20">
<author>K. W. Yu</author>
<author>Tong Lai Yu</author>
<title>Superimposing Encrypted Data.</title>
<pages>48-54</pages>
<year>1991</year>
<volume>34</volume>
<journal>Commun. ACM</journal>
<number>2</number>
<url>db/journals/cacm/cacm34.html#YuY91</url>
</article>
</dblp>
