1. Peter Chalk, “The Evolving Dynamic of Terrorism in the 1990s,” Australia Journal of International Afjairs, Vol. 53, No. 2 (1999), p. 164.
2. Harvey F. Kline, “Columbia: Lawlessness, Drug Trafficking, and Carving Up the State,” in Robert I. Rotberg (ed.), State Failure and State Weahness in a Time of Terror (Cambridge, MA and Washington, DC: World Peace Foundation and Brookings Institution Press, 2003), p. 171.
3. Jurgen Brauer, Alejandro Gomez-Sorzano, and Sankara Sethuraman, “Decomposing Violence: Political Murder in Colombia, 1946–1999,” European Journal of Political Economy, Vol.20, No. 2 (2004), pp. 447–61; and Manwaring, “Non-State Actors in Colombia.” p. 77.
4. James Dingley, “The Bombing of Omagh, 15 August 1998: The Bombers, Their Tactics, Strategy, and Purpose behind the Incident,” Studies in Conflict and Terrorism, Vol. 24, No. 6 (2001).
5. Dogu Ergil, “Suicide Terrorism in Turkey,” Civil Wars, Vol. 3, No. 1 (2000), pp. 37–54.