O.M. Mohamed vall and  M. Radhi,  Using Genetic Algorithms in Closed Loop Identification of the Systems with Variable Structure Controller.   journal   = {International Journal of Electrical and Computer Engineering}, [online]. World Academy of Science, Engineering and Technology.
    December 2007, vol. 12(12). 3935 - 3938
    [viewed 19 April 2024]. Available from: https://publications.waset.org/pdf/11112.