1. H. Maecker,Z. Phys. 141, 198 (1955).
2. H. Maecker,Appl. Sci. Res. B 5, 231 (1955).
3. O. B. Bron and L. K. Sushkov,Plasma Jets in the Switching Arc (in Russian), Energia, Leningrad (1975).
4. G. Ecker,Ergenbn. Exakt. Naturw. 33, 1 (1961).
5. Z. Kołaciński,Proc. XVII Int. Conf. Phenomena in Ionized Gases, J. S. Bakos and Z. Sorlei, eds. Budapest (1985), p. 786.