Columbia subject headings:
Harvard subject headings:
Art, Byzantine--Congresses.
Byzantine Empire--Civilization--Congresses.
Byzantine antiquities--Congresses.
Princeton subject headings:
Art, Byzantine--Russia (Federation)--Congresses.
Art, Byzantine--Ukraine--Congresses.
Byzantine Empire--History--Congresses.
Byzantine antiquities--Congresses.
Excavations (Archaeology)--Ukraine--Crimea--Congresses.