1. H. R. Griem, Spectral Line Broadening by Plasmas, Academic Press, New York (1974).
2. J. T. Jeffries, Spectral Line Formation, Blaisdell, Waltham, Massachusetts (1968).
3. H. J. Kunze, in Plasma Diagnostics, W. Lochte Holtgreven, Ed., North-Holland, Amsterdam (1968).
4. F.-J. Schönes, Habilitationsschrift, Saarbrücken (1973).
5. H. J. Liebe and T. H. Dillon, J. Quant. Spectrosc. Radiat. Transfer. 11, 1803 (1971).