Mahmoud M. Othman and  Yasser G. Hegazy,  Optimal Planning of Voltage Controlled Distributed Generators for Power Loss Reduction in Unbalanced Distribution Systems.   journal   = {International Journal of Electrical and Computer Engineering}, [online]. World Academy of Science, Engineering and Technology.
    September 2015, vol. 104(8). 958 - 963
    [viewed 25 April 2024]. Available from: https://publications.waset.org/pdf/10002570.