1. Gupta, L., Jain, R., & Vaszkun, G. (2016). Survey of important issues in UAV communication networks. IEEE Communications Surveys Tutorials, 18(2), 1123–1152.
2. Internet Drone and Balloon Projects Move Forward: https://www.internetsociety.org/blog/2018/07/internet-drone-and-balloon-projects-move-forward/.
3. Jawhar, I., Mohamed, N., & Shuaib, K. (2007). A framework for pipeline infrastructure monitoring using wireless sensor networks. In Wireless Telecommunications Symposium,2007, 1–7.
4. Gholami, A., Fiaz, U. A., & Baras, J. S. (2019). Drone-assisted communications for remote areas and disaster relief.
5. Wu, W. W. (2010). Internet satellite challenges. In 2010 2nd International Conference on Evolving Internet, pp. 31–35.