Columbia subject headings:
Europe--Politics and government--21st century.
Radicalism--Europe.
Right and left (Political science)--Europe.
Right-wing extremists--Europe.
Harvard subject headings:
Europe--Politics and government--21st century.
Radicalism--Europe.
Right and left (Political science)--Europe.
Right-wing extremists--Europe
Princeton subject headings:
Europe--Politics and government--21st century.
Radicalism--Europe.
Right and left (Political science)--Europe.
Right-wing extremists--Europe.