1. J.T. Eash and C. Upthegrove: Trans. AIME, 1933, vol. 104, pp. 221–49.
2. B.D. Bastow and D.H. Kirkwood: J. Inst. Met., 1971, vol. 99, pp. 277–83.
3. Y. Murakami and S. Kachi: Trans. JIM, 1983, vol. 24 (1), pp. 9–17.
4. M. Miki and Y. Ogino: Trans. JIM, 1984, vol. 2 (9), pp. 593–602.
5. E. Wachtel and E. Bayer: Z. Metallkd., 1984, vol. 75, pp. 61–69.