Columbia subject headings:
Olivi, Pierre Jean, 1248 or 1249-1298--Congresses.
Philosophy, Medieval--Congresses.
Harvard subject headings:
Olivi, Pierre Jean, 1248 or 1249-1298--Congresses.
Philosophy, Medieval--Congresses.
Theology, Doctrinal--History--Middle Ages, 600-1500--Congresses.
Princeton subject headings:
Olivi, Pierre Jean, 1248 or 1249-1298--Congresses.
Philosophy, Medieval--Congresses.
Theology, Doctrinal--History--Middle Ages, 600-1500--Congresses.