1. Time and time again: the many ways to represent time;Allen;Int. J. Intell. Syst.,1991
2. The semantic web: a new form of web content that is meaningful to computers will unleash a new revolution of possibilities;Berners-Lee;Sci. Am.,2001
3. On applying the AGM theory to DLs and OWL;Flouris,2005
4. A translation approach to portable ontology specifications;Gruber;Knowl. Acquisition, Int. J. Knowl. Acquisition Knowl.-Based Syst.,1993
5. Consistent evolution of OWL ontologies;Haase,2005