Pierre Mariot Jean-Pierre Cotton Christine Golbreich Alain Berger François Vexler Querying Multiple Sources with OWL Ontologies: an Exploratory Study in an Automotive Company. 2007 OWLED http://ceur-ws.org/Vol-258/paper08.pdf conf/owled/2007 db/conf/owled/owled2007.html#MariotCGBV07