WASET
    Setareh Gorji Ghalamestani and  Lieven Vandevelde and  Jan Melkebeek,  Identification of Transformer Core Vibrations and the Effect of Third Harmonic in the Electricity Grid.   journal   = {International Journal of Industrial and Manufacturing Engineering}, [online]. World Academy of Science, Engineering and Technology.
    May 2014, vol. 90(6). 890 - 893
    [viewed 26 April 2024]. Available from: https://publications.waset.org/pdf/9998518.