Proceedings of the 21st International Symposium on High Voltage Engineering. ISH 2019. Lecture Notes in Electrical Engineering, vol 598 B. Németh. Proceedings of the 21st International Symposium on High Voltage Engineering. ISH 2019. Lecture Notes in Electrical Engineering, vol 598, 598, Springer, pp.1108-1120, 2020, Lecture Notes in Electrical Engineering, 978-3-030-31675-4. ⟨10.1007/978-3-030-31676-1_104⟩ Lecture Notes in Electrical Engineering ISBN: 9783030316754