Columbia subject headings:
Harvard subject headings:
Arthurian romances--Adaptations--History.
Drama--Technique
Epic literature--Adaptations--History.
German drama--Early modern, 1500-1700--History and criticism.
German drama--Middle High German, 1050-1500--History and criticism.
Religious drama, German--History and criticism.
Princeton subject headings:
Drama, Medieval--History and criticism.
German drama--To 1500--History and criticism.