Columbia subject headings:
German philology--Study and teaching--History.
Hagen, Friedrich Heinrich von der, 1780-1856--Criticism and interpretation.
Harvard subject headings:
German philology--Study and teaching--History.
Hagen, Friedrich Heinrich von der, 1780-1856--Criticism and interpretation.
Princeton subject headings:
German literature--History and criticism.
German philology--History and criticism.
Hagen, Friedrich Heinrich von der, 1780-1856.