Columbia subject headings:
Harvard subject headings:
Brazil--Politics and government--2003-
Portugal--Politics and government--21st century.
Radicalization--Brazil.
Radicalization--Portugal.
Right and left (Political science)--Brazil.
Right and left (Political science)--Portugal.
Princeton subject headings:
Brazil--Politics and government--2003-
Portugal--Politics and government--21st century.
Radicalization--Brazil.
Radicalization--Portugal.
Right and left (Political science)--Brazil.
Right and left (Political science)--Portugal.