Columbia subject headings:
Harvard subject headings:
Economic development--International cooperation--Congresses
European Union countries--Economic integration--Congresses.
Infrastructure (Economics)--Government policy--European Union countries--Congresses.
Telecommunication policy--European Union countries--Congresses.
Princeton subject headings:
Economic development--International cooperation--Congresses.
European Union countries--Economic integration--Congresses.
Infrastructure (Economics)--Government policy--European Union countries--Congresses.
Telecommunication policy--European Union countries--Congresses.