Columbia subject headings:
Harvard subject headings:
Balkan Peninsula--Ethnic relations--Congresses.
Conflict management--Balkan Peninsula--Congresses.
European Union--Former Yugoslav republics--Congresses.
Princeton subject headings:
Balkan Peninsula--Economic conditions--Congresses.
Balkan Peninsula--Ethnic relations--Congresses.
Balkan Peninsula--Politics and government--1989---Congresses.
Balkan Peninsula--Relations--Europe--Congresses.
Europe--Relations--Balkan Peninsula--Congresses.