1. H. A. Lipsitt, R. E. Schafrik and D. Schechtman, Met. Trans. 11A (1980) 1369.
2. J. C. Williams and M. J. Blackburn, in ?Ordered Alloys? edited by H. Kear, T. Sims, S. Stoloff and J. H. Westbrook (Claitor's Publishing Division, Baton Rouge, Los Angeles, 1970) pp. 425?445.
3. S. M. L. Sastry and H. A. Lipsitt, Met. Trans. 8A (1977) 1543.
4. Idem, Acta Met. 25 (1977) 1279.
5. N. S. Choudhury and J. E. Henry, Systems Research Laboratories, Inc., Dayton, Ohio, unpublished work.