1. Edition 9.0;IEC 60071-1,2019
2. Edition 3.0;IEC 60060-1,2010
3. Edition 1.0;IEC 62475,2010
4. A. Küchler: High Voltage Engineering – Fundamentals – Technology – Applications (Springer, Berlin, Heidelberg 2018)
5. K. Berger, R.B. Anderson, H. Kröninger: Parameters of lightning flashes, Electra 41(1), 23–37 (1975)