QUASI-CRYSTAL AND CRYSTAL IN AlMn AND AlMnSi. MODEL STRUCTURE OF THE ICOSAHEDRAL PHASE P. GUYOT, M. AUDIER et R. LEQUETTEJ. Phys. Colloques, 47 C3 (1986) C3-389-C3-404DOI: https://doi.org/10.1051/jphyscol:1986340