WASET
    Mihai Lungu,  Stabilization and Control of a UAV Flight Attitude Angles using the Backstepping Method.   journal   = {International Journal of Aerospace and Mechanical Engineering}, [online]. World Academy of Science, Engineering and Technology.
    January 2012, vol. 61(1). 53 - 60
    [viewed 20 April 2024]. Available from: https://publications.waset.org/pdf/6207.