1. Shechtman, D., Blech, I., Gratias, D. & Cahn, J. W. Phys. Rev. Lett. 53, 1951–1953 (1984).
2. Sainfort, P., Dubost, B. & Dubus, A. C.r. hebd. Séanc. Acad. Sci. Ser. II, Paris 301, 689–692 (1985).
3. Hardy, H. K. & Silcock, J. M. J. Inst. Metall. 24, 423–428 (1955).
4. Sainfort, P. & Dubost, B. in Workshop on Aperiodic Crystals (eds Michel, L. & Gratias, D.) J. de Phys. Paris, Coll. C3 47, 321–330 (1986).
5. Audier, M., Sainfort, P. & Dubost, B. Phil. Mag. (in the press).