2010-09-04T00:33:58Zhttp://oai.vpcore.snkn.nl/requestczphttp://www.imsglobal.org/xsd/imsmd_v1p2p4.xsdhttp://www.imsglobal.org/xsd/imsmd_v1p2/lomhttp://www.imsglobal.org/xsd/imsmd_v1p2p4.xsdhttp://ltsc.ieee.org/xsd/LOM/oai_dchttp://dublincore.org/schemas/xmls/simpledc20021212.xsdhttp://www.openarchives.org/OAI/2.0/oai_dc/oai_qdchttp://dublincore.org/schemas/xmls/qdc/dcterms.xsdhttp://purl.org/dc/terms/