2009-11-30T15:53:05+00:00
xsd:dateTime
220389
xsd:long
2012-01-10T11:09:22+00:00
xsd:dateTime
approved
2009-11-30T15:53:05+00:00
xsd:dateTime
2023-04-24T13:37:49+00:00
xsd:dateTime
lesmaterialen
schoolboeken
lesmaterialen