Columbia subject headings:
Balkan Peninsula--Ethnic relations--History--Congresses.
Balkan Peninsula--History--20th century--Congresses.
Balkan Peninsula--Politics and government--Congresses.
Nationalism--Balkan Peninsula--History--Congresses.
Harvard subject headings:
Balkan Peninsula--History.
Post-communism--Balkan Peninsula.
Yugoslavia--History
Princeton subject headings:
Balkan Peninsula--Ethnic relations--History--Congresses.
Balkan Peninsula--History--20th century--Congresses.
Balkan Peninsula--Politics and government--Congresses.
Nationalism--Balkan Peninsula--History--Congresses.