Columbia subject headings:
Architecture, Byzantine--Congresses.
Art, Byzantine--Congresses.
Byzantine Empire--Civilization--Congresses.
Harvard subject headings:
Architecture, Byzantine--Congresses.
Art, Byzantine--Congresses.
Byzantine Empire--Congresses.
Byzantine literature--History and criticism--Congresses.
Princeton subject headings:
Architecture, Byzantine--Congresses.
Art, Byzantine--Congresses.
Byzantine Empire--Congresses.
Byzantine literature--History and criticism--Congresses.