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4. R. W. Cahn, in Reelystallization of Metallic Materials, Haessner, ed. Dr. Riederer Verlag, Stuttgart, 1971, p. 43.
5. R. D. Doherty and R. W. Calm. J. Less'. Common Metals28:279 (1972). (Part of W. G. Burgers Festschrift.)