Columbia subject headings:
Harvard subject headings:
Austria--Relations--Czech Republic--Bohemia--Congresses.
Austria--Relations--Czech Republic--Moravia--Congresses.
Balkan Peninsula--History.
Bohemia (Czech Republic)--Relations--Austria--Congresses.
Moravia (Czech Republic)--Relations--Austria--Congresses.
Princeton subject headings:
Austria--History--Congresses.
Bohemia (Czech Republic)--History--Congresses.
Moravia (Czech Republic)--History--Congresses.