"Sediment cores from Dogger Littoral suggest Dogger Island survived ancient tsunami". phys.org. Retrieved 2 January 2021. ↑ "The Doggerland Project", University of Exeter Department of Archaeology 1 2 3 4 Patterson, W, "Coastal Catastrophe" (paleoclimate research document), University of Saskatchewan Archived 9 April 2008 at the Wayback Machine 1 2 Rincon, Paul (1 May 2014). "Prehistoric North Sea 'Atlantis' hit by 5m tsunami".