Columbia subject headings:
Christian poetry, German--History and criticism.
Crusades--Poetry--History and criticism.
German poetry--Middle High German, 1050-1500--History and criticism.
Harvard subject headings:
Christian poetry, German--History and criticism
Crusades--Poetry--History and criticism.
German poetry--Middle High German, 1050-1500--History and criticism
Princeton subject headings:
Christianity and other religions--Islam.
German poetry--Middle High German, 1050-1500--History and criticism.