@misc{cbs2020municipal,
  title = {Municipal boundaries Apeldoorn 2020}
  author = {CBS},
  url = {https://www.nationaalgeoregister.nl/geonetwork/srv/dut/catalog.search#/metadata/caeb52a3-cbaa-4e9b-a23e-d4dc0335b506},
  year = {2020}
}