1. M. Moisan, M.D. Calzada, A. Gamero, A. Sola, J. Appl. Phys. 80, 46 (1996)
2. R.H. Huddlestone, S.L. Leonard, Plasma Diagnostic Techniques (Academic Press, New York, 1965)
3. H.R. Griem, Plasma Spectroscopy (McGraw-Hill, New York, 1964)
4. W. Lochte-Holtgreven, Plasma Diagnostics (North-Holland, Amsterdam, 1968)
5. M. Mitchner, C.H. Kruger, Partially Ionized Gases (Wiley, New York, 1973)