Mohamad Mahdavi and  Mojtaba Mahdavi,  Statistical Reliability Based Modeling of Series and Parallel Operating Systems using Extreme Value Theory.   journal   = {International Journal of Industrial and Manufacturing Engineering}, [online]. World Academy of Science, Engineering and Technology.
    July 2011, vol. 55(7). 1359 - 1363
    [viewed 09 August 2020]. Available from: https://publications.waset.org/pdf/7254.