Columbia subject headings:
Harvard subject headings:
Berlin (Germany)--Antiquities--Congresses.
Brandenburg (Germany : State)--Antiquities--Congresses.
Excavations (Archaeology)--Germany--Berlin--Congresses.
Excavations (Archaeology)--Germany--Brandenburg--Congresses.
Princeton subject headings:
Berlin (Germany)--Antiquities--Congresses.
Brandenburg (Germany : State)--Antiquities--Congresses.
Excavations (Archaeology)--Germany--Berlin--Congresses.
Excavations (Archaeology)--Germany--Brandenburg--Congresses.