Y. Kalfoglou, and M. Schorlemmer. Proceedings of the 1st International Conference on Ontologies, Databases and Application of Semantics (ODBASE'02), Irvine, CA, USA, page 1132-1151. (October 2002)
Y. Kalfoglou, and M. Schorlemmer. Semantic Interoperability and Integration, 04391, Internationales Begegnungs- und Forschungszentrum fuer Informatik (IBFI), Schloss Dagstuhl, Germany, (2005)$<$http://drops.dagstuhl.de/opus/volltexte/2005/40$>$
date of citation: 2005-01-01.