Columbia subject headings:
Harvard subject headings:
Caves--Germany--Thuringia.
Excavations (Archaeology)--Germany--Thuringia.
Germany--Antiquities.
Thuringia (Germany)--Antiquities.
Princeton subject headings:
Caves--Germany (East)--Thüringia.
Excavations (Archaeology)--Germany (East)--Thüringia.
Thuringia (Germany)--Antiquities.