Columbia subject headings:
Harvard subject headings:
Smelting--Germany--Swabian Alps--History.
Swabian Alps (Germany)--Antiquities.
Princeton subject headings:
Germany--Antiquities.
Industrial archaeology--Germany--Swabian Alps.
Iron industry and trade--Germany--Swabian Alps--History.
Smelting--Germany--Swabian Alps--History.
Swabian Alps (Germany)--Antiquities.