Columbia subject headings:
Drama, Medieval--Research--Congresses.
Theater--Europe--History--Medieval, 500-1500--Research--Congresses.
Harvard subject headings:
Drama, Medieval--Research--Congresses.
Theater--Europe--History--Medieval, 500-1500--Research--Congresses.
Princeton subject headings:
Drama, Medieval--Research--Congresses.
Theater--Europe--History--Medieval, 500-1500--Research--Congresses.