Rosa Meo Marco Botta Roberto Esposito Query Rewriting in Itemset Mining. 111-124 http://springerlink.metapress.com/openurl.asp?genre=article&issn=0302-9743&volume=3055&spage=111 2004 conf/fqas/2004 FQAS db/conf/fqas/fqas2004.html#MeoBE04