Janji, Salim, and Pawel Sroka. “RIS-Aided Multi-Hop Backhauling for 5G 6G UAV-Assisted Access Points”. Journal of Telecommunications and Information Technology 92, no. 2 (June 29, 2023): 63–69. Accessed May 4, 2026. https://jtit.pl/jtit/article/view/1190.