L. Henley, J. Deniozou, R. Addou, A. Shukla, M. Heggen et al., Non-Cryst. Solids 153-154, 172 1993. 26 Th

B. Nielsen and D. L. Adams, r-factor analysis of the effect of non-structural parameters in LEED, applied to Al(111), Journal of Physics C: Solid State Physics, vol.15, issue.3, p.615, 1982.
DOI : 10.1088/0022-3719/15/3/026

L. F. Da-silva, C. Stampfl, M. Scheffler-ferralis, K. Pussi, E. J. Cox et al., 41 A. Kiejna and B. I. Lundqvist, Phys. Rev, Surf. Sci. Phys. Rev. B, vol.600, issue.69, 2001.