Diffraction of neon by a (117) copper surface J. Lapujoulade, Y. Le Cruër, M. Lefort, Y. Lejay, E. Maurel et N. PapanicolaouJ. Physique Lett., 42 21 (1981) 463-464DOI: https://doi.org/10.1051/jphyslet:019810042021046300