Columbia subject headings:
Christianity in literature--Congresses.
Literature, Medieval--History and criticism--Congresses.
Ohly, Friedrich, 1914-1996.
Harvard subject headings:
Christianity in literature--Congresses.
Literature, Medieval--History and criticism--Congresses
Ohly, Friedrich, 1914-
Princeton subject headings:
Literature, Medieval--History and criticism.
Ohly, Friedrich, 1914-1996.
Philosophy, Medieval.