Columbia subject headings:
Democracy--Germany--History--19th century--Congresses.
Germany--History--Revolution, 1848-1849--Congresses.
Harvard subject headings:
Democracy--Germany--History--19th century--Congresses.
Germany--History--Revolution, 1848-1849--Congresses.
Princeton subject headings:
Democracy--Germany--History--19th century--Congresses.
Germany--History--Revolution, 1848-1849--Congresses.