: schoolyearhttps://vocabs.cbs.nl/def/frequenties/ Create a prefix for https://vocabs.cbs.nl/def/frequenties/ Hit Enter to save Double click to create a prefix | skos:inScheme | : schemehttps://vocabs.cbs.nl/def/frequenties/ Create a prefix for https://vocabs.cbs.nl/def/frequenties/ Hit Enter to save Double click to create a prefix | https://frequenties |