Columbia subject headings:
Energy policy--European Union countries.
Energy policy--Russia (Federation)
European Union countries--Foreign relations--Russia (Federation)
European Union--Russia (Federation)
Russia (Federation)--Foreign relations--European Union countries.
Security, International--Eurasia.
Harvard subject headings:
Energy policy--European Union countries
Energy policy--Russia (Federation)
European Union countries--Foreign relations--Russia (Federation)
European Union--Russia (Federation)
Russia (Federation)--Foreign relations--European Union countries.
Security, International--Eurasia.
Princeton subject headings: