Al-Co-Cu-Si and Al-Co-Cu microcrystalline and quasicrystalline phases of decagonal symmetry Marc Audier, Pascale Launois, Françoise Dénoyer, Marianne Lambert, Chuang Dong and Jean-Marie Dubois Microsc. Microanal. Microstruct., 1 5-6 (1990) 417-422 DOI: 10.1051/mmm:0199000105-6041700