Columbia subject headings:
Literature, Medieval--Congresses.
Spanish literature--To 1500--History and criticism--Congresses.
Harvard subject headings:
Literature, Medieval--Congresses.
Literature, Medieval--History and criticism--Congresses
Spanish literature--To 1500--History and criticism--Congresses
Princeton subject headings:
Literature, Medieval--History and criticism--Congresses.
Spanish literature--To 1500--History and criticism--Congresses.