Carola Eschenbach Michael Grüninger Formal Ontology in Information Systems, Proceedings of the Fifth International Conference, FOIS 2008, Saarbrücken, Germany, October 31st - November 3rd, 2008 183 Frontiers in Artificial Intelligence and Applications 2008 978-1-58603-923-3 IOS Press FOIS db/conf/fois/fois2008.html