relatedmaterial http://lod.xdams.org/reload/oad/eadElement/IBC_relatedmaterial an entity of type: eadElement rdfs:label relatedmaterial rdf:type oad:eadElement owl:sameAs <http://loc.gov/ead/tglib/elements/relatedmaterial.html> skos2008:mappingRelation oad:has_relatedUnitsOfDescription data from the linked data cloud