WASET
    Sung-Hun Lee and  Yun-Seong Lee and  Jin-O Kim,  Risk Level Evaluation for Power System Facilities in Smart Grid.   journal   = {International Journal of Electrical and Computer Engineering}, [online]. World Academy of Science, Engineering and Technology.
    February 2012, vol. 62(2). 234 - 238
    [viewed 27 April 2024]. Available from: https://publications.waset.org/pdf/11378.