Prashant P. Bedekar and  Sudhir R. Bhide and  Vijay S. Kale,  Optimum Time Coordination of Overcurrent Relays using Two Phase Simplex Method.   journal   = {International Journal of Electrical and Computer Engineering}, [online]. World Academy of Science, Engineering and Technology.
    April 2009, vol. 28(4). 903 - 907
    [viewed 25 April 2024]. Available from: https://publications.waset.org/pdf/3108.