References
1.
M. I. Boulos, P. Fauchais, and E. Pfender, “Thermal Plasmas: Fundamentals and Applications”, Plenum Press, Springer (1994).
2.
J. J. Lowke, “A Unified Theory of Arcs and their Electrodes”, J. Phys. IV France Vol. 7 (1997) C4-283-C4-294.