F. Witos, Z. Gacek, and A. Opilski, “A new acoustic emission descriptor for modelled sources of partial discharges”, Arch. Acoust., vol. 27, no. 1, Jan. 2002, Accessed: Jan. 17, 2026. [Online]. Available: https://acoustics.ippt.gov.pl/index.php/aa/article/view/417