Columbia subject headings:
Austria--History--Revolution, 1848-1849--Congresses.
Harvard subject headings:
Austria--History--Revolution, 1848-1849--Congresses.
Austria--History--Revolution, 1848-1849.
Austria--Social conditions.
Europe--History--1848-1849.
Liberalism--Austria.
Princeton subject headings:
Austria--History--Revolution, 1848-1849--Congresses.