1. P. Kapranos, D.H. Kirkwood, C.M. Sellars, Journal of Engineering Manufacture, B1a, Vol. 207 (1993), 4, p.1.
2. W. Püttgen, W. Bleck, I. Seidl, R. Koop, C. Bertrand, Advanced Engineering materials, Vol. 7 (2005), No 8, p.726.
3. B.A. Behrens, B. Haller, and D. Fischer, Steel Research Int, Vol. 75 (2004), 8/9, p.561.
4. A. Rassili, M. Robelet, D. Fischer, Proc. 9th ESAFORM Conf., Glasgow (2006) pp.819-822.
5. F. Küthe, A. Schönbohm, D. Abel, R. Kopp, Steel Research Int, Vol. 75 (2004), 8/9, pp.601-606.