Columbia subject headings:
Europe, Eastern--History.
Europe, Eastern--Politics and government--19th century.
Nationalism--Europe, Eastern.
Harvard subject headings:
Balkan Peninsula--History--19th century--Congresses.
Balkan Peninsula--History--Autonomy and independence movements--Congresses.
Princeton subject headings:
Balkan Peninsula--History--19th century--Congresses.
Balkan Peninsula--History--Autonomy and independence movements--Congresses.