Columbia subject headings:
Harvard subject headings:
Byzantine Empire--Civilization--Roman influences--Congresses.
Canon law--Orthodox Eastern Church--Roman influences--Congresses.
Roman law--Influence--Congresses.
Russia (Federation)--Civilization--Roman influences--Congresses.
Princeton subject headings:
Byzantine Empire--Civilization--Roman influences--Congresses.
Canon law--Orthodox Eastern Church--Roman influences--Congresses.
Roman law--Influence--Congresses.
Russia (Federation)--Civilization--Roman influences--Congresses.