Columbia subject headings:
Biedermeier--Congresses.
Vienna (Austria)--Intellectual life--19th century--Congresses.
Harvard subject headings:
Biedermeier--Congresses.
Vienna (Austria)--Intellectual life--19th century--Congresses.
Princeton subject headings:
Biedermeier--Congresses.
Vienna (Austria)--Intellectual life--19th century--Congresses.