Columbia subject headings:
Drense (Germany)--Antiquities, Slavic.
Excavations (Archaeology)--Germany--Drense.
Fortification--Germany--Drense.
Germany (East)--Antiquities, Slavic.
Slavs--Germany--Drense.
Harvard subject headings:
Drense (Germany)--Antiquities, Slavic.
Excavations (Archaeology)--Germany--Drense.
Fortification--Germany (East)--Drense.
Germany (East)--Antiquities, Slavic.
Slavs--Germany (East)--Drense.
Princeton subject headings:
Drense (Germany)--Antiquities, Slavic.
Excavations (Archaeology)--Germany--Drense.
Fortification--Germany--Drense.
Slavs--Germany--Drense.