1. Abbe, E.: Archiv, f. Mikroskopische Anat. 9, 413 (1873)
2. Heidenreich, R. D.: Fundamentals of transmission electron microscopy. New York: Interscience Publishers 1964
3. Hirsch, P. B., Howie, A., Nicholson, R. B.. Pashley, D. W., Whelan, M. J. W.: Electron microscopy of thin crystals. London: Butterworths 1965
4. Cowley, J. M.: Diffraction physics. Amsterdam, Oxford: North-Holland Publishing Co. 1975
5. Humphries, C. J.: Reports on the Progress in Physics 42, 1825 (1979)