1. Ackerman, Spencer. "Fewer deaths from drone strikes in 2013 after Obama policy change." The Guardian. December 31, 2013.https://www.theguardian.com/world/2013/dec/31/deaths-drone-strikes-obama-policy-change.
2. Akerson, David.“The Illegality of Offensive Lethal Autonomy”, International Humanitarian Law and the Changing Technology of War”, (Ed. Dan Saxon), Martinus Nijhoff Publishers, Boston, 2013.
3. Anderson, Kenneth, and Matthew C. Waxman, “Law and Ethics for Autonomous Weapon Systems: Why a Ban Won’t Work and How the Laws of War Can”, Stanford University, The Hoover Institution, 10 April 2013.
4. Anderson, Kenneth, Daniel Reisner, and Matthew Waxman, “Adapting the Law of Armed Conflict to Autonomous Weapon Systems”, International Law Studies Series, US Naval War College, Vol. 90, 2014.
5. Beard, Jack M. “Autonomous Weapons and Human Responsibilities”, Georgetown Journal of International Law, Vol. 45, no.3, 2014.