On the scattering mechanism of the electron impact on surfaces in specular reflection geometry : Nickel (110) A. Ruocco, M. Milani, S. Nannarone et G. StefaniJ. Phys. IV France, 09 PR6 (1999) Pr6-149-Pr6-152DOI: https://doi.org/10.1051/jp4:1999633