F. Haghjoo and M. Sarlak and S.M. Shahrtash, Implementation of an On-Line PD Measurement System Using HFCT. journal = {International Journal of Electrical and Computer Engineering}, [online]. World Academy of Science, Engineering and Technology. January 2009, vol. 25(1). 104 - 110 [viewed 26 April 2024]. Available from: https://publications.waset.org/pdf/4873.