1. Young, B., 1972, 4th International Conference on Conduction and Breakdown in Dielectric Liquids, Dublin.
2. Young, B., 1973, I.E. E. Conference on Diagnostic Testing of High Voltage Power Apparatus in Service, London.
3. Krasucki, Z., 1972, 4th International Conference on Conduction and Breakdown in Dielectric Liquids, Dublin.
4. Rhodes, G.M., and Brignell, J.E., ibid
5. Birlasekaran, S., and Darveniza, M., ibid