1. C. J. Barton, B. G. Reisdorf, P. H. Salmon Cox, J. M. Chilton, and C. E. Oksin, Jr.: Tech. Rep. AFML-TR-67-34, Air Force Materials Laboratory, 1967.
2. L. N. Belyakov:Metal, i. Term. Obrab. Metal., July 1970, no. 7, pp. 6–10.
3. David Kalish and H. J. Rack:Met. Trans., 1971, vol. 2, pp. 2665–72.
4. R. W. Cahn:Physical Metallurgy, John Wiley and Sons, New York, 1965, pp. 972–75.
5. N. E. Hannerz and F. DeKazinczy:J. Iron Steel Inst, 1970, vol. 208, pp. 475–81.