1. 3) J.Robertson: Mater.Sci.Technol., 6 (1990), 81.
2. 4) M.Baroux: Wire J. (1979) May, 62.
3. 5) M.Schutze: Oxid.Metals, 44 (1995), Nos.1/2, 29.
4. 7) H.Kushida and Y.maeda: CAMP-ISIJ, 19 (2006), No.2, 398.
5. 8) H.Kushida and Y.maeda: CAMP-ISIJ, 20(2007),No.5,983.