Columbia subject headings:
Archaeology, Medieval--Danube River Valley--Congresses.
Danube River Valley--Antiquities, Roman--Congresses.
Europe, Central--Civilization--Classical influences--Congresses.
Europe, Eastern--Civilization--Classical influences--Congresses.
Military archaeology--Danube River Valley--Congresses.
Roman provinces--Boundaries--Danube River Valley--Congresses.
Harvard subject headings:
Danube River Valley--Antiquities, Roman--Congresses.
Excavations (Archaeology)--Danube River Valley--Congresses.
Limes (Roman boundary)--Danube River Valley--Congresses.
Romans--Danube River Valley--Congresses.
Rome--Boundaries--Danube River Valley--Congresses.
Princeton subject headings:
Archaeology, Medieval--Danube River Valley--Congresses.
Danube River Valley--Antiquities, Roman--Congresses.
Europe, Central--Civilization--Classical influences--Congresses.
Europe, Eastern--Civilization--Classical influences--Congresses.
Military archaeology--Danube River Valley--Congresses.
Roman provinces--Boundaries--Danube River Valley--Congresses.