Win Win Tun and  Han Su Yin and  Ohn Zin Lin,  Modeling and Simulation of Overcurrent and Earth Fault Relay with Inverse Definite Minimum Time.   journal   = {International Journal of Energy and Power Engineering}, [online]. World Academy of Science, Engineering and Technology.
    November 2019, vol. 156(12). 731 - 741
    [viewed 09 April 2020]. Available from: https://publications.waset.org/pdf/10010927.