1 2 Amy E. Smithson and Leslie-Anne Levy (October 2000). "Chapter 3 – Rethinking the Lessons of Tokyo". Ataxia: The Chemical and Biological Terrorism Threat and the US Response (Report). Henry L. Stimson Centre. pp. 91–95, 100. Report No. 35. Retrieved 15 December 2014.
↑ Tucker, Johnathan B. "Chemical Terrorism: Assessing Threats and Responses." Weapons of Mass Destruction and Terrorism, 2nd Ed. Ed. James J.F. Forest & Russell D. Howard: New York: McGraw-Hill, 2013, pg. 99.
