Harvey, A. D. (1 June 1991). "The pistol as assassination weapon: A case of technological lag". Terrorism and Political Violence. 3 (2): 92–98. doi:10.1080/09546559108427107. ISSN0954-6553.
Harvey, A. D. (1 June 1991). "The pistol as assassination weapon: A case of technological lag". Terrorism and Political Violence. 3 (2): 92–98. doi:10.1080/09546559108427107. ISSN0954-6553.