Columbia subject headings:
European Union countries--Politics and government.
Populism--European Union countries.
Right-wing extremists--European Union countries.
Harvard subject headings:
European Union countries--Politics and government.
Populism--European Union countries.
Right-wing extremists--European Union countries.
Princeton subject headings:
European Union countries--Politics and government.
Populism--European Union countries.
Right-wing extremists--European Union countries.