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2. H. Margolin, J. C. Williams, J. C. Chesnutt and G. Lutjering, in “Titanium '80 Science and Technology”, Proceedings of the 4th International Conference on Titanium, edited by H. Kimura and O. Izumi (The Metallurgical Society of AIME, Warrendale, PA, 1980) p. 169.
3. M. Peters, A. Gysler and G. Lutjering, in ibid.“ p. 1777.
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