Columbia subject headings:
Energy industries--Europe, Eastern.
Europe, Eastern--Economic integration.
Power resources--Europe, Eastern.
Harvard subject headings:
Energy industries--Europe, Eastern.
Energy policy--Europe
Energy policy--Europe, Eastern
Europe, Eastern--Economic integration.
Power resources--Europe
Power resources--Europe, Eastern.
Princeton subject headings:
Energy industries--Europe, Eastern.
Europe, Eastern--Economic integration.
Power resources--Europe, Eastern.