Zixin Liu,  Improved Robust Stability and Stabilization Conditions of Discrete-time Delayed System.   journal   = {International Journal of Mathematical and Computational Sciences}, [online]. World Academy of Science, Engineering and Technology.
    July 2010, vol. 43(7). 874 - 880
    [viewed 23 April 2024]. Available from: https://publications.waset.org/pdf/7184.