1. Ball, R. J., 2017. The Proliferation of Unmanned Aerial Vehicles: Terrorist Use, Capability, and Strategic Implications. Livermore, CA: Lawrence Livermore National Lab, Livermore, United States.
2. Bin Inam, Z., and Rauf, S., 2024. Understanding Urban Warfare and its manifestation in the Russia-Ukraine War. Institute of Strategic Studies Islamabad, 10 January 2024.
3. Chulilla-Cano, J. L. C., 2023. Presente y futuro de los drones comerciales letalizados [The present and future of lethal commercial drones], Revista General de Marina, 284(5), pp 673–684.
4. DCDC, 2016. Strategic Trends Programme: Future Operating Environment. Ministry of Defence. United Kingdom.
5. Elfversson, E., Gusic, I., and Rokem, J., 2023. Peace in cities, peace through cities? Theorising and exploring geographies of peace in violently contested cities. Peacebuilding, 11(4), pp 321–337.