WASET
    R. Ghasemi and  M. R. Rahimi Khoygani,  Designing Intelligent Adaptive Controller for Nonlinear Pendulum Dynamical System.   journal   = {International Journal of Energy and Power Engineering}, [online]. World Academy of Science, Engineering and Technology.
    November 2014, vol. 95(11). 2026 - 2030
    [viewed 25 April 2024]. Available from: https://publications.waset.org/pdf/10000039.