Khaled M. El Naggar,  Fault Location Identification in High Voltage Transmission Lines .   journal   = {International Journal of Electrical and Computer Engineering}, [online]. World Academy of Science, Engineering and Technology.
    June 2019, vol. 151(7). 553 - 557
    [viewed 12 July 2020]. Available from: https://publications.waset.org/pdf/10010625.