1. A. W. Bowen, RAE TR 76106 (1976)
2. Idem, Proceedings of the Third International Conference on Titanium Moscow (1976) to be published.
3. J. A. Feeney and M. J. Blackburn, Met. Trans. 1 (1970) 3309.
4. J. C. Williams, B. S. Hickman and H. L. Marcus, ibid 2 (1971) 1913.
5. L. A. Rosales, K. Ono, A. W. Sommer and L. A. Lee, Titanium Science and Technology, Vol. 2, edited by R. I. Jaffee and H. M. Burte (Plenum, New York, 1973) p. 1813.