1. H. R. Griem Principles of Plasma Spectroscopy (Cambridge University Press, Cambridge, 1997).
2. I. H. Hutchinson Principles of Plasma Diagnostics (Cambridge University Press, Cambridge, 1987).
3. General Impact Theory of Pressure Broadening
4. H. R. Griem Spectral Line Broadening by Plasmas (Academic Press, London, 1974).