WASET
    Rohollah. Abdollahi and  Alireza. Jalilian,  Application of Pulse Doubling in Star-Connected Autotransformer Based 12-Pulse AC-DC Converter for Power Quality Improvement.   journal   = {International Journal of Electrical and Computer Engineering}, [online]. World Academy of Science, Engineering and Technology.
    August 2011, vol. 56(8). 1098 - 1106
    [viewed 19 April 2024]. Available from: https://publications.waset.org/pdf/10426.