Columbia subject headings:
Harvard subject headings:
German literature--19th century--History and criticism
German poetry--19th century--Themes, motives.
Lenau, Nicolaus, 1802-1850--Criticism and interpretation.
Poetry--Themes, motives
Princeton subject headings:
Lenau, Nicolaus, 1802-1850--Criticism and interpretation.
Lenau, Nicolaus, 1802-1850. Postillion.