<?xml version="1.0"?>
<dblp>
<article key="journals/jucs/HlavacsGSZPHJ08" mdate="2009-03-02">
<author>Helmut Hlavacs</author>
<author>Wilfried N. Gansterer</author>
<author>Hannes Schabauer</author>
<author>Joachim Zottl</author>
<author>Martin Petraschek</author>
<author>Thomas Hoeher</author>
<author>Oliver Jung</author>
<title>Enhancing ZRTP by using Computational Puzzles.</title>
<pages>693-716</pages>
<year>2008</year>
<volume>14</volume>
<journal>J. UCS</journal>
<number>5</number>
<url>db/journals/jucs/jucs14.html#HlavacsGSZPHJ08</url>
</article>
</dblp>
