WASET
    Jin Fan and  M. Ala Saadeghvaziri,  Applications of Drones in Infrastructures: Challenges and Opportunities.   journal   = {International Journal of Mechanical and Mechatronics Engineering}, [online]. World Academy of Science, Engineering and Technology.
    September 2019, vol. 154(10). 658 - 664
    [viewed 26 April 2024]. Available from: https://publications.waset.org/pdf/10010806.