Columbia subject headings:
Harvard subject headings:
Austria--History--1519-1740--Congresses.
Austria--History--Congresses.
Austria--Relations--Turkey--Congresses.
Habsburg, House of--History--Congresses.
Turkey--History--Ottoman Empire, 1288-1918--Congresses.
Turkey--Relations--Austria--Congresses.
Princeton subject headings:
Austria--History--Congresses.
Austria--Relations--Turkey--Congresses.
Habsburg, House of--History--Congresses.
Turkey--History--Ottoman Empire, 1288-1918--Congresses.
Turkey--Relations--Austria--Congresses.