Columbia subject headings:
Cologne (Germany)--Antiquities--Periodicals.
Harvard subject headings:
Antiquities--Periodicals
Archaeology--Germany--Periodicals.
Archaeology--Periodicals
Cologne (Germany)--Antiquities--Periodicals.
Princeton subject headings:
Cologne (Germany)--Antiquities--Periodicals.
Excavations (Archaeology)--Germany--Cologne--Periodicals.
Periodicals.