REFERENCES
- Mironoff (N). Introduction to the Study of Spark Erosion. (Microtechnic scriptor S. A., Lausanne. Switzerland) 1967.
- Bucklow (I A) and Colb (M). Metals and Materials. 3, 6; 1969; 103.
- Simon (W). The Numerical Control of Machine Tools. Edward Arnold, London. 1973. P 300–316.
- Dredger (D R). EDM Goes into Orbit, Machine Design. 49, 9; 1977; 218–221.