1. W. Lochte-Holtgreven (ed.), Plasma Diagnostics, American Elsevier (1968).
2. C. Kenty and W. J. Karash, Phys. Rev.,78, No. 6, 625 (1950).
3. G. F. Karabadzhak, V. D. Peskov, and E. R. Podolyak, Zh. Prikl. Spektrosk.,37, No. 3, 509 (1982).
4. N. S. Zinchenko, Ukr. Fiz. Zh.,16, No. 6, 951 (1971).
5. J. Richter, Partial Thermodynamic Equilibria in Plasmas. Proceedings of 10th Intern. Conf. on Phenomena in Ionized Gases, D. Parson, Publ., Oxford, England (1971), pp. 37?56.