1. R. Zimmerman, C. E. Restrepo, N. Dooskin, J. Fraissinet, R. Hartwell, J. Miller, and W. Remington, “Diagnostic tools to estimate consequences of terrorism attacks against critical infrastructure,” in Proceedings of the U.S. Department of Homeland Security Conference, Working Together: Research and Development Partnerships in Homeland Security, Boston, MA2005.
2. Semana “Negocio redondo” http://www.semana.com/nacion/articulo/negocio-redondo/94315-3 Semana 2008, accessed February 1, 2016.
3. Caracol radio “Capturan a funcionarios de una empresa que atentaba contra las torres eléctricas de ISA” http://caracol.com.co/radio/2009/06/15/judicial/1245050340_829038.htmlCaracol radio 2009, accessed February 1, 2016.
4. B. Krebs, “Who is Anna-Senpai, the Mirai Worm Author?” Krebs on Security, 2017, accessed May 19, 2017. [Online]. Available: https://krebsonsecurity.com/2017/01/who-is-anna-senpai-the-mirai-worm-author/
5. Stratfor “Colombia: Rebel Attacks Shaping Economy, Elections.” 2002, accessed April 20, 2018. [Online]. Available: https://www.stratfor.com/analysis/colombia-rebel-attacks-shaping-economy-elections