1. S. J. B. Reed, Electron Microprobe Analysis, Cambridge University Press (1975).
2. M. Green and V. E. Cosslett, “The Efficiency of Production of Characteristic X-Radiation in Thick Targets of a Pure Element”, Proc. Phys. Soc. 78, 1206–1214 (1961).
3. R. Whiddington, “Transmission of Kathode Rays through Matter”, Proc. Roy. Soc. A 86, 360–370 (1912).
4. P. Duncumb and S. J. B. Reed, “The Calculation of Stopping Pover and Backscatter Effects in Electron Probe Microanalysis”, in K. F. J. Heinrich, Editor, Quantitative Electron Probe Microanalysis, pp. 133–154, U. S. Department of Commerce, National Bureau of Standards, Special Publication 298 (1968).
5. H. E. Bishop, in R. Castaing, P. Deschamps, & J. Philibert, Editors, Optique des Rayons X et Microanalyse, p. 153, Paris: Hermann (1966); quoted in S. J, B. Reed, Electron Microprobe Analysis, Cambridge University Press (1975).