NEUTRON DIFFRACTION STUDIES OF THE ICOSAHEDRAL PHASE OF Al-Mn ALLOYS B. MOZER, J.W. CAHN, D. GRATIAS et D. SHECHTMAN J. Phys. Colloques, 47 C3 (1986) C3-351-C3-360 DOI: 10.1051/jphyscol:1986336