WASET
    Kamran Turkoglu and  Ugur Ozdemir and  Melike Nikbay and  Elbrous M. Jafarov,  PID Parameter Optimization of an UAV Longitudinal Flight Control System.   journal   = {International Journal of Aerospace and Mechanical Engineering}, [online]. World Academy of Science, Engineering and Technology.
    September 2008, vol. 21(9). 1031 - 1036
    [viewed 25 April 2024]. Available from: https://publications.waset.org/pdf/12521.