Jérôme Euzenat Antoine Zimmermann Frederico Luiz Gonçalves de Freitas Alignment-based Modules for Encapsulating Ontologies. 2007 WoMO http://ceur-ws.org/Vol-315/paper4.pdf conf/kcap/2007womo db/conf/kcap/womo2007.html#EuzenatZF07