Columbia subject headings:
Harvard subject headings:
Archaeological assemblages--North Frisian Islands (Denmark and Germany)
Excavations (Archaeology)--North Frisian Islands (Denmark and Germany)
Land settlement--North Frisian Islands (Denmark and Germany)
North Frisian Islands (Denmark and Germany)--Antiquities.
Princeton subject headings:
Archaeology, Medieval--North Frisian Islands (Denmark and Germany).
Excavations (Archaeology)--North Frisian Islands (Denmark and Germany).
Human settlements--North Frisian Islands (Denmark and Germany)--History.
North Frisian Islands (Denmark and Germany)--Antiquities.
Trade routes--North Frisian Islands (Denmark and Germany)--History.