Columbia subject headings:
Arab Spring, 2010---Congresses.
Democratization--Congresses.
Group identity--Congresses.
Human rights--Congresses.
Liberty--Congresses.
Political participation--Congresses.
Harvard subject headings:
Arab Spring, 2010---Congresses.
Democratization--Congresses.
Group identity--Congresses
Human rights--Congresses
Liberty--Congresses
Political participation--Congresses
Princeton subject headings: