Ali Z a'fari,  Mitigation of Flicker using STATCOM with Three-Level 12-pulse Voltage Source Inverter.   journal   = {International Journal of Electrical and Computer Engineering}, [online]. World Academy of Science, Engineering and Technology.
    January 2011, vol. 49(1). 45 - 50
    [viewed 07 December 2019]. Available from: https://publications.waset.org/pdf/2895.