Roof Walkers of Scandinavia (sources)

  • "Roof Walker," by user Humon, page in the Deviant Art website, posted ca. 12-9-2012, viewed 6-6-2015. Online at: http://humon.deviantart.com/art/Roof-Walker-341987421
  • Facebook message from Katrine Kristensen, recieved 5-30-2018, regarding the translations of the names.