@misc{municipality2020archeological,
  title = {Archeological discoveries and geological map of The Hague}
  author = {Municipality The Hague},
  url = {https://ddh.maps.arcgis.com/apps/MapSeries/index.html?appid=303c6ea652c749eda919e8b8ba0427c1},
  year = {2020}
}