Columbia subject headings:
Law, Greek--Antiquities--Congresses.
Law, Greek--Congresses.
Harvard subject headings:
Law, Byzantine--Congresses.
Law, Greek--Congresses.
Law--History--Egypt--To 1500--Congresses.
Law--History--Greece--To 1500--Congresses.
Princeton subject headings:
Law, Greek--Congresses.
Roman law--Congresses.