1. 1) O. Kubaschewski: Iron-Binary Phase Diagrams, Springer, Berlin, Heidelberg, (1982), 59.
2. 2) A. A. Nayeb-Hashemi, J. B. Clark and L. J. Swartzendruber: Bull. Alloy Phase Diagr., 6 (1985), 235. https://doi.org/10.1007/BF02880405
3. 3) K. Sakakibara: J. JFS, 86 (2014), 639 (in Japanese). https://doi.org/10.11279/jfes.86.639
4. 4) F. Habashi, ed.: Handbook of Extractive Metallurgy, Vol. 2, VCH Verlagsgesellschaft mbH, Weinheim, (1997), 1129.
5. 5) H. Kusamichi, J. Iseki, A. Moriya, A. Kanai, T. Nishimura, H. Kanayama and T. Kusamichi: Titanium Industry in Japan and Its New Technologies, AGNE Gijutsu Center, Tokyo, (1996), 1 (in Japanese).