Det drejer sig om undersøgelserne vedrørende Liège i Belgien, Groningen i Nederlandene, Lens i Frankrig samt Strathclyde (Glasgow), Belfast, Humberside og Scilly-øerne i Det Forenede Kongerige.
These were the studies on Liège in Belgium, Groningen in the Netherlands, the Lens region in France and Strathclyde (Glasgow), Belfast, Humberside and the Scilly isles in the United Kingdom.