Columbia subject headings:
Civilization, Medieval--Congresses.
Middle Ages--Congresses.
Middle Ages--Periodicals.
Harvard subject headings:
Civilization, Medieval--Congresses
Middle Ages--Congresses
Middle Ages--Periodicals
Princeton subject headings:
Art, Medieval--Periodicals.
Civilization, Medieval--Congresses--Periodicals.
Literature, Medieval--History and criticism--Periodicals.
Middle Ages--History--Periodicals.
Periodicals.
Philosophy, Medieval--Periodicals.