1. Silence and Voice in the Study of Contentious Politics
2. Anderson, Benedict (1983/1991): Imagined Communities: Reflections on the Origin and Spread of Nationalism,London: Verso.
3. Applegate, Celia (1990): A Nation of Provincials. The German Idea of Heimat, University of California Press.
4. Barnett, Jon (2001): The Meaning of Environmental Security,London: Zed Books.
5. An Insider's Critique of the Social Movement Framing Perspective