WASET
    Zahzouh Zoubir and  Bouzaouit Azzeddine and  Gahgah Mounir,  Nine-Level Shunt Active Power Filter Associated with a Photovoltaic Array Coupled to the Electrical Distribution Network.   journal   = {International Journal of Electrical and Computer Engineering}, [online]. World Academy of Science, Engineering and Technology.
    July 2017, vol. 128(8). 969 - 973
    [viewed 19 April 2024]. Available from: https://publications.waset.org/pdf/10007898.