<?xml version="1.0"?>
<dblp>
<article key="journals/ita/FlogelBL93" mdate="2002-01-03">
<author>Andreas Fl&#246;gel</author>
<author>Hans Kleine B&#252;ning</author>
<author>Theodor Lettmann</author>
<title>On the Restricted Equivalence Subclasses of Propositional Logic.</title>
<pages>327-340</pages>
<year>1993</year>
<volume>27</volume>
<journal>ITA</journal>
<number>4</number>
<url>db/journals/ita/ita27.html#FlogelBL93</url>
</article>
</dblp>
