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    J. B. V. Subrahmanyam and  C. Radhakrishna,  Distributed Generator Placement and Sizing in Unbalanced Radial Distribution System.   journal   = {International Journal of Electrical and Computer Engineering}, [online]. World Academy of Science, Engineering and Technology.
    April 2009, vol. 28(4). 753 - 760
    [viewed 28 March 2024]. Available from: https://publications.waset.org/pdf/8582.