1. 1) S. A. Argyropoulos: Trans. Iron and Steel Society of the AIME, (Iron and Steelmaker, May 1990) pp. 77–86.
2. 2) S. A. Argyropoulos and M. Pekguleryuz: CIM Bull. June (2002) 83–86.
3. 3) C. M. Brown, N. J. Pappas and H. J. Brown: US Patent, No. 3592637, July 13, (1971).
4. 4) Y. E. Lee and D. LeMasters: Light Metals 2001, Ed. by J. L. Anjier, (The Minerals, Metals & Materials Society, 2001) pp. 985–990.
5. 5) Y. E. Lee and S. L. Houser: Light Metals 2000, Ed. by R. D. Peterson, (The Minerals, Metals & Materials Society, 2000) pp. 711–717.