Ehrig, Marc, and York Sure. FOAM ? Framework for Ontology Alignment and Mapping; Results of the Ontology Alignment Initiative In Workshop on Integrating Ontologies., 2005.

Bouquet, Paolo, Marc Ehrig, Jérôme Euzenat, Enrico Franconi, Pascal Hitzler, Markus Krötzsch, Luciano Serafini, and Giorgos Y Stamou. "Specification of a Common Framework for Characterizing Alignment." Knowledgeweb deliverable (2004).