Columbia subject headings:
Byzantine Empire--Civilization.
Byzantine Empire--History.
Civilization, Medieval.
Le Goff, Jacques, 1924-2014.
Harvard subject headings:
Byzantine Empire--Civilization.
Byzantine Empire--History.
Civilization, Medieval
Le Goff, Jacques, 1924-2014
Princeton subject headings:
Byzantine Empire--Civilization--Congresses.
Le Goff, Jacques, 1924-2014--Congresses.