<?xml version="1.0"?>
<dblp>
<article key="journals/apal/ButzKRW00" mdate="2003-11-28">
<author>Carsten Butz</author>
<author>Ulrich Kohlenbach</author>
<author>S&#248;ren Riis</author>
<author>Glynn Winskel</author>
<title>Preface.</title>
<pages>1-2</pages>
<year>2000</year>
<volume>104</volume>
<journal>Ann. Pure Appl. Logic</journal>
<number>1-3</number>
<url>db/journals/apal/apal104.html#ButzKRW00</url>
</article>
</dblp>
