1. J. D. Winefordner, J. J. Fitzgerald, and N. Omenetto, Appl. Spectrosc. 29, 369 (1975). This paper gives an excellent review of multidetector, scanning, and multiplex spectrometers as applied to atomic absorption and emission spectra.
2. K. Siegbahn, C. Nordling, A. Fahlman, R. Norderg, K. Hamrin, J. Hedman, G. Johansson, T. Bergmark, S. Karlson, I. Liridgren, and B. Lindberg, ESC A: Atomic, Molecular, and Solid State Structure Studied by Means of Electron Spectroscopy, Almqvist and Wiksell, Uppsala, Sweden, 1967
3. K. Siegbahn, C. Nordling, G. Johansson, J. Hedman, P. F. Heden, K. Hamrin, U. Gelius, T. Bergmark, L. O. Werme, R. Manne, and Y. Baer, ESC A: Applied to Free Molecules, North Holland, Amsterdam, The Netherlands, 1969.
4. D. W. Turner, A. D. Baker, C. Baker, and C. R. Brundle, High Resolution Molecular Photoelectron Spectroscopy, Wiley, New York, 1970.
5. H. Fellner-Feldegg, U. Gelius, B. Wann berg, A. G. Nilsson, E. Basilier, and K. Siegbahn, J. Electron Spectrosc. 5, 643 (1974).