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2. Campaign to Stop Killer Robots. 2017. (2017). https://www.stopkillerrobots.org/
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4. Amitai Etzioni and Oren Etzioni (Eds.). 2017. Pros and Cons of Autonomous Weapons Systems. Military Review.
5. Matthew Rosenberg and John Markoff. 2016. The Pentagon's 'Terminator Conundrum': Robots That Could Kill on Their Own. New York Times (2016).