The following publications are possibly variants of this publication:
- Ontologies in F-logicJürgen Angele, Georg Lausen. In Steffen Staab, Rudi Studer, editors, Handbook on Ontologies. International Handbooks on Information Systems, pages 29-50, Springer, 2004.
- Rules and Ontologies in F-LogicMichael Kifer. rweb 2005: 22-34 [doi]
- Ontological Reasoning with F-logic Lite and its ExtensionsAndrea Calì, Georg Gottlob, Michael Kifer, Thomas Lukasiewicz, Andreas Pieris. AAAI 2010: 1660-1665 [doi]