Rabah Diabi,  Evaluation of the Zero Sequence Impedance of Overhead High Voltage Lines.   journal   = {International Journal of Electrical and Computer Engineering}, [online]. World Academy of Science, Engineering and Technology.
    June 2013, vol. 78(6). 750 - 756
    [viewed 27 April 2024]. Available from: https://publications.waset.org/pdf/8395.