WASET
    Guomin Luo and  Daming Zhang and  Yong Kwee Koh and  Kim Teck Ng and  Helmi Kurniawan and  Weng Hoe Leong,  An Advanced Time-Frequency Domain Method for PD Extraction with Non-Intrusive Measurement.   journal   = {International Journal of Electrical and Computer Engineering}, [online]. World Academy of Science, Engineering and Technology.
    February 2012, vol. 62(2). 167 - 173
    [viewed 29 March 2024]. Available from: https://publications.waset.org/pdf/2006.