<?xml version="1.0"?>
<dblp>
<article key="journals/ai/Yager87" mdate="2003-11-19">
<author>Ronald R. Yager</author>
<title>Using Approximate Reasoning to Represent Default Knowledge.</title>
<pages>99-112</pages>
<year>1987</year>
<volume>31</volume>
<journal>Artif. Intell.</journal>
<number>1</number>
<url>db/journals/ai/ai31.html#Yager87</url>
</article>
</dblp>
