Paul Cotofrei Kilian Stoffel From Temporal Rules to Temporal Meta-rules. 169-178 http://springerlink.metapress.com/openurl.asp?genre=article&issn=0302-9743&volume=3181&spage=169 2004 conf/dawak/2004 DaWaK db/conf/dawak/dawak2004.html#CotofreiS04