2023-04-24T13:36:01+00:00
xsd:dateTime
2007-11-23T13:15:57+00:00
xsd:dateTime
2020-10-12T20:57:39+00:00
xsd:dateTime
25718
xsd:long
approved
2020-10-12T20:57:39+00:00
xsd:dateTime
futurologie
toekomstonderzoek
futurologie