Wilfred Fritz ,  Validation of Solar PV Inverter Harmonics Behaviour at Different Power Levels in a Test Network.   journal   = {International Journal of Electrical and Computer Engineering}, [online]. World Academy of Science, Engineering and Technology.
    January 2019, vol. 145(1). 36 - 41
    [viewed 20 April 2024]. Available from: https://publications.waset.org/pdf/10009974.