<?xml version="1.0"?>
<dblp>
<article key="journals/ijar/MasMT08" mdate="2009-01-15">
<author>Margarita Mas</author>
<author>Miquel Monserrat</author>
<author>Joan Torrens</author>
<title>Modus ponens and modus tollens in discrete implications.</title>
<pages>422-435</pages>
<year>2008</year>
<volume>49</volume>
<journal>Int. J. Approx. Reasoning</journal>
<number>2</number>
<ee>http://dx.doi.org/10.1016/j.ijar.2008.04.002</ee>
<url>db/journals/ijar/ijar49.html#MasMT08</url>
</article>
</dblp>
