1. ACKERMAN, G., “Understanding Terrorist Innovation Through the Broader Innovation Context” (Apéndice III, pp. 51-69), en M. Rasmussen y M. Hafez, Terrorist Innovations in Weapons of Mass Effect: Reconditions, Causes, and Predictive Indicators, informe de taller, Defense Threat Reduction Agency; Advanced Systems and Concepts Office, informe número ASCO 2010-2019, octubre de 2010, https://apps.dtic.mil/sti/pdfs/ADA556986.pdf
2. Afghanistan Index, “Tracking Progress and Security in Post-9/11 Afghanistan”, 25 de agosto de 2020 (último índice), https://www.brookings.edu/afghanistan-index/
3. ALLEN, Michael y Cynthia COLLEY, Will fear keep them in line? A formal model and empirical testing of the relationship between terrorism and repression. Comunicación presentada en el Annual meeting of the ISA’s 49th annual convention. San Francisco, 26 de marzo de 2008.
4. “Ambassador Eikenberry’s Cables on U.S. Strategy in Afghanistan”, The New York Times, https://www.nytimes.com/interactive/projects/documents/eikenberry-s-memos-on-the-strategy-in-afghanistan
5. American War and Military Operations. Casualties: Lists and Statistics, Congressional Research Service, RL32492, actualización de 29 de julio de 2020, https://crsreports.congress.gov/product/pdf/RL/RL32492/33