Columbia subject headings:
Harvard subject headings:
Art, Byzantine--History--Congresses.
Byzantine Empire--Civilization--Congresses.
Byzantine Empire--Relations--Europe--Congresses.
Christianity and culture--Byzantine Empire--Congresses.
Christianity and culture--Europe--Congresses.
Church and state--Byzantine Empire--Congresses.
Church and state--Europe--History--Congresses.
Europe--Relations--Byzantine Empire--Congresses.
Intercultural communication--Byzantine Empire--Congresses.
Intercultural communication--Europe--History--Congresses.
Miscommunication--Byzantine Empire--Congresses.
Miscommunication--Europe--History--Congresses.
Princeton subject headings:
Byzantine Empire--Civilization--Congresses.