Columbia subject headings:
Drava River Valley--Antiquities, Roman.
Excavations (Archaeology)--Drava River.
Excavations (Archaeology)--Slovenia.
Slovenia--Antiquities, Roman.
Harvard subject headings:
Drava River Valley--Antiquities, Roman--Congresses.
Excavations (Archaeology)--Drava River--Congresses.
Excavations (Archaeology)--Slovenia--Congresses.
Slovenia--Antiquities, Roman--Congresses.
Princeton subject headings:
Drava River Valley--Antiquities, Roman.
Excavations (Archaeology)--Drava River.
Excavations (Archaeology)--Slovenia.
Slovenia--Antiquities, Roman.