Columbia subject headings:
Byzantine Empire--Civilization--Congresses.
Byzantine Empire--Intellectual life--Congresses.
Europe, Western--Civilization--Congresses.
Europe, Western--Intellectual life--Congresses.
Lazarev, Viktor Nikitich, 1897-1976.
Russia--Civilization--Congresses.
Russia--Intellectual life--Congresses.
Harvard subject headings:
Byzantine Empire--Civilization--Congresses.
Byzantine Empire--Intellectual life--Congresses.
Europe, Western--Civilization--Congresses.
Europe, Western--Intellectual life--Congresses.
Lazarev, Viktor Nikitich, 1897-1976
Russia--Civilization--Congresses.
Russia--Intellectual life--Congresses.
Princeton subject headings:
Byzantine Empire--Civilization--Congresses.
Byzantine Empire--Intellectual life--Congresses.
Europe, Western--Civilization--Congresses.
Europe, Western--Intellectual life--Congresses.
Lazarev, Viktor Nikitich, 1897-1976.
Russia--Civilization--Congresses.
Russia--Intellectual life--Congresses.