1. 1) O. D. SHERBY, B. WALSER, C. M. YOUNG, and E. M. CADY : Scripta Met., 9 (1975), p. 569
2. 2) O. D. SHERBY, C. M. YOUNG, B. WALSER, and E. M. CADY : U. S. Patent #3,951,697, Apr. 20, (1976)
3. 3) B. WALSER, E. S. KAYALI, and O. D. SHERBY : 4th International Conference on the Strength of Metals and Alloys, ed. by Laboratoire de physique du Solid, Nancy, France, 1 (1976)
4. 4) J. WADSWORTH and O. D. SHERBY : J. Met. Sci., 13 (1978), p. 2645
5. 5) E. S. KAYALI : Ph. D. Thesis, Stanford University, (1976)