Columbia subject headings:
Harvard subject headings:
Economic development--Balkan Peninsula--History--21st century--Congresses.
Economic development--Europe--History--21st century--Congresses.
European Union countries--Economic policy--Congresses.
Financial crises--Balkan Peninsula--History--21st century--Congresses.
Financial crises--Europe--History--21st century--Congresses.
Princeton subject headings:
Balkan Peninsula--Economic conditions.
Economics--Europe.