Franz Baader Jan Hladik Carsten Lutz Frank Wolter From Tableaux to Automata for Description Logics. 1-32 http://springerlink.metapress.com/openurl.asp?genre=article&issn=0302-9743&volume=2850&spage=1 2003 conf/lpar/2003 LPAR db/conf/lpar/lpar2003.html#BaaderHLW03