1. M. HANSEN, ?Constitution of binary alloys?, 2nd Edn. (McGraw-Hill, New York, 1958).
2. R. P. ELLIOT, ?ibid., ??, 1st Supplement (McGraw-Hill, New York, 1965).
3. K. L. CHOPRA, ?Thin film phenomena? (McGraw-Hill, New York, 1969).
4. H. SCHLOTTERER,Z. Naturforsch. 20a (1965) 1201.
5. D. W. PASHLEY,Phil. Mag. 4 (1959) 324.