1. T. Okabe and A. G. Guy:Met. Trans., 1970, vol. 1, pp. 2705–13.
2. R. A. Oriani: Private Communication, Research Laboratory, U.S. Steel Corporation.
3. J. D. Verhoeven and E. Hucke:Trans. TMS-AIME, 1963, vol. 227, pp. 1156–66.
4. D. F. Kalinovich:Sov. Phys.-Solid State, 1961, vol. 3, pp. 812–15.
5. M. J. Bibby, L. C. Hutchinson, and W. V. Youdelis:Can. J. Phys., 1966, vol. 44, pp. 2375–86.