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- fedora-system, fedora-model and fedora-relsext namespaces as OWL ontologies
- fedora-relsext as rdf schema
Resources
- A November 2009 thread from the developers' list with some comments from Chris, Mark and Asger
- Some notes on defining Fedora relationships in OWL from Asger's ECM documentation
- fedora-relsext as rdf schema
- The fcrepo Java classes corresponding to these namespaces (and more)