1. W. Köster and W. Wolf, Z. Metallkd. 28 (1936) 155.
2. W. Köster and W. Dullenkopf, ibid. 28 (1936) 309, 363.
3. L. F. Mondolfo, Int. Metall. Rev. 153 (1971) 95.
4. W. B. Pearson, ?Handbook of Lattice Spacing and Structure of Metals and Alloys? (Pergamon Press, Oxford, 1958).
5. L. F. Mondolfo, ?Aluminium Alloys: Structure and Properties? (Butterworths, London, 1976).