1. UAV application in agriculture http://съемкасвоздуха.рф/otrasli/bpla-v-selskom-khozyajstve.html (in Russian).
2. The Use of Unmanned Aerial Vehicles (UAVs) in Agriculture - Regulations, Challenges and Opportunities;Rennie,2015
3. Application of unmanned aerial vehicles in republic of Armenia agriculture;Vardanyan;Bulletin Natl. Agrar. Univ. Armen.,2017
4. The Potential of Unmanned Aerial Vehicles in Agricultural Development http://www.danofficeit.com/corporate-information/news.aspx?Action=1&NewsId=54&M=NewsV2&PID=640.