José Luis Oslinger and  Luis Carlos Castro,  Correlation between Capacitance and Dissipation Factor used for Assessment of Stator Insulation.   journal   = {International Journal of Electrical and Computer Engineering}, [online]. World Academy of Science, Engineering and Technology.
    March 2012, vol. 63(3). 288 - 294
    [viewed 20 September 2019]. Available from: https://publications.waset.org/pdf/8960.