Columbia subject headings:
Harvard subject headings:
Architecture, Early Christian--Dobruja (Romania and Bulgaria)
Dobruja (Romania and Bulgaria)--Antiquities.
Excavations (Archaeology)--Dobruja (Romania and Bulgaria)
Tombs--Dobruja (Romania and Bulgaria)
Princeton subject headings:
Architecture, Early Christian--Dobruja (Romania and Bulgaria).
Dobruja (Romania and Bulgaria)--Antiquities.
Excavations (Archaeology)--Dobruja (Romania and Bulgaria).
Tombs--Dobruja (Romania and Bulgaria).