1. C.E. Shamblen and T. K. Redden:Science and Technology and Application of Titanium. 1968, p. 199.
2. R. K. Clark, J. Unnam, and C.W Stroud:Proceedings of 30th National SAMPE Symposium. March 1985.
3. R. K. Clark and J. Unnam: NASA TM86294. August 1984.
4. D. Gupta and S. Weinig:Trans. AIME, 1959, vol. 215, pp. 209–16.
5. E.S. Bumps, H.D. Kessler, and M. Hansen:Trans. ASM, 1953, vol. 45, p. 1008.