Schweiger, E. (2022, March). Fighting silence covert warfare and the uphill battle against the unsaid. European Journal of International Relations, 28(1), 110-130. https://doi.org/10.1177/13540661211053830
Ramesh, P. S., & Muruga Lal Jeyan, J. V. (2022, October 20). Evaluation of design criteria for mini unmanned aircraft systems (UAS) applications. Aircraft Engineering and Aerospace Technology, 94(3), 327-335. https://doi.org/10.1108/AEAT-03-2021-0089
Enemark, C. (2014, September 4). Drones, Risk, and Perpetual Force. Ethics & International Affairs, 28(3), 365-381. https://doi.org/10.1017/S0892679414000446
Glazebrook, T. (2019, November 4). Are drone strikes ever ethical? THE NEW STATEMAN. https://www.newstatesman.com/world/2019/11/are-drone-strikes-ever-ethical