1. Abdullah A (1989) Voltage injection and performance evaluation in EDM. Dissertation, The Victoria University of Manchester, Vol. 1, March
2. Albinski K, Musiol A, Miernikiewicz S, Labuz M (1995) Plasma temperature in electro discharge machining. Proc ISEM XI:143–152
3. Zhang JH, Lee TC, Lav WS (1997) Spark erosion with ultrasonic frequency. J Mater Process Technol 68:83–88
4. Zolotkh BN, Korobova JP (1964) Selection of the optimum conditions for the electrospark machining of cermets. In: Lazarenko BR (ed) Electrospark machining of metals, Vol. 2. Consulants Bureau Enterprises, Inc., New York, pp 79–84
5. Chetverikov SS, Foteev NK (1964) Electrospark machining of the cutting elements of sintered carbide blanking and piercing dies. In: Lazarenko BR (ed) Electro spark machining of metals, Vol. 2. pp 85–101