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2. M.A. Morris, M. Bowker, D.A. King: In Compressive Chemical Kinetics, Vol. 19, ed. by C.H. Bramford (Elsevier, Amsterdam 1984) pp. 1?163
3. Springer Ser. Chem. Phys.,1980
4. H. Ibach, D.L. Mills: Electron Energy Loss Spectroscopy and Surface Vibrations (Academic, New York 1982)
5. B.N.J. Persson, M. Persson: Solid State Commun. 36, 175 (1980); Surf. Sci. 97, 609 (1980)