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2. F.M. Walters Jr., C. Wells: Trans. ASM 24 (1936) 359–374.
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4. R.W. Gurry, J. Christakos, L.S. Darken: Trans. ASM 53 (1961) 187–198.
5. H. Schenck, M.G. Frohberg, E. Steinmetz: Arch. Eisenhüttenwes. 34 (1963) 37–42.