Columbia subject headings:
Local government--Europe--Congresses.
Regional economics--Congresses.
Regional planning--Europe--Congresses.
Sustainable development--Europe--Congresses.
Harvard subject headings:
Community development.
Regional planning--European Union countries.
Regional planning.
Sustainable development--European Union countries
Sustainable development.
Princeton subject headings:
Local government--Europe--Congresses.
Regional economics--Congresses.
Regional planning--Europe--Congresses.
Sustainable development--Europe--Congresses.