https://static1.squarespace.com/static/5c62d8bb809d8e27588adcc0/t/62ea672f6b608314a3fb408c/1659529018236/GB2837-PUB-AY-14-04_Environment-and-Living-Conditions-at-Two-Anglo-Scandinavian-Sites_A-R-Hall-H-K-Kenward-D-Williams-J-R-A-Greig.pdf