Columbia subject headings:
Authors, Austrian--19th century--Biography--Exhibitions.
Lenau, Nicolaus, 1802-1850--Exhibitions.
Lenau, Nicolaus, 1802-1850.
Harvard subject headings:
Authors, Austrian--19th century--Biography--Exhibitions.
Lenau, Nicolaus, 1802-1850--Exhibitions.
Lenau, Nicolaus, 1802-1850.
Princeton subject headings:
Lenau, Nicolaus, 1802-1850--Exhibitions.