Columbia subject headings:
Harvard subject headings:
Erigena, Johannes Scotus, approximately 810-approximately 877--Criticism and interpretation.
Ibn Gabirol, active 11th century--Criticism and interpretation.
Mysticism--History--Middle Ages, 600-1500
Princeton subject headings:
Erigena, Johannes Scotus, approximately 810-approximately 877--Criticism and interpretation.
Ibn Gabirol, active 11th century--Criticism and interpretation.
Mysticism--History--Middle Ages, 600-1500.