Columbia subject headings:
Lenau, Nicolaus, 1802-1850--Influence.
Lenau, Nicolaus, 1802-1850.
Harvard subject headings:
Lenau, Nicolaus, 1802-1850--Criticism and interpretation.
Lenau, Nicolaus, 1802-1850--Influence.
Lenau, Nicolaus, 1802-1850.
Princeton subject headings:
Lenau, Nicolaus, 1802-1850--Criticism and interpretation.