1. T. Haga, (2003) J.mater.process.Technol.,140, 610-615
2. T. Haga, (2001) J.mater.process.Technol.,118:165-168
3. T. Haga, H. Inui, H. Sakaguchi, H. Watari, S. Kumai, (2007) Journal of Achievemets in Materials and Manufacturing Engineering, vol. 24:365-371
4. M. Yun, X. Yang, D.V. Edmonds, J.D.Hunt, P.M. Thomas, (1991) CastMet. Vol.4-2, p.108.
5. D.V. Edmonds, J.D. Huunt, (1991) Extraction Refining and Fabrication of Light Metals, CIM, Ottawa, p.257