1. Achelpöhler, W. (2009). Demonstration in Kehl – ein paar Eindrücke, Grüne Linke. http://www.gruene-linke.de/2009/04/05/eindrucke-von-der-no-to-nato-demo-in-kehl/. Zugegriffen: 16 Aug. 2017.
2. Blumer, H. (1986). Symbolic interactionism: Perspective and method. University of California Press.
3. Bramsen, I. (2018). How violence happens (or Not): Situational conditions of violence and nonviolence in Bahrain, Tunisia and Syria. Psychology of Violence.
4. City of Seattle. (2008). ‘Interactive Incident Map with Police Incident Timeline Description of Nov 30 1999 Seattle Protests’. http://www.seattle.gov/archive/wtocommittee/maps/1130_800_829.htm. Zugegriffen: 12 Febr. 2011.
5. Collins, R. (2008). Violence: A micro-sociological theory. Princeton University Press.