1. 1) O. Grässel, L. Krüger, G. Frommeyer and L. W. Meyer: Int. J. Plast., 16 (2000), 1391.
2. 2) K. P. Abraham, M. W. Davies and F. D. Richardson: J. Iron Steel Inst., 196 (1960), 82.
3. 3) S. R. Mehta and F. D. Richardson: J. Iron Steel Inst., 203 (1965), 524.
4. 4) C.-H. Eom, S.-H. Lee, J.-G. Park, J.-H. Park and D.-J. Min: ISIJ Int., 56 (2016), 37.
5. 5) D.-H. Woo, Y.-B. Kang and H.-G. Lee: Metall. Mater. Trans. B, 33 (2002), 915.