Columbia subject headings:
Erigena, Johannes Scotus, approximately 810-approximately 877.
Harvard subject headings:
Erigena, Johannes Scotus, approximately 810-approximately 877--Congresses.
Philosophy, Medieval--Congresses.
Princeton subject headings:
Augustine, of Hippo, Saint, 354-430--Influence--Congresses.
Boethius, -524--Influence--Congresses.
Erigena, Johannes Scotus, approximately 810-approximately 877--Congresses.