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2. Must analytical chemistry become ever more sensitive?;Tölg;Fresenius Z. Anal. Chem.,1988
3. K. Laqua, Analytical Spectroscopy using laser atomizers, Chapter 2 in “Analytical Laser Spectroscopy”, N. Omenetto, Ed., Wiley & Sons, New York (1979).
4. K. Niemax, Editor: Diode lasers Spectroscopy, Spectrochim. Acta Rev. 15 (1993) 291–395.
5. H. Kaiser, “Die Berechnung der Nachweisempfindlichkeit”, Spectrochim. Acta, Vol. III, N.1 (1947) 40–67, reproduced in Spectrochim. Acta, Special Supplement, (1990) 177–204.