1. Appeltauer, J., N.L., Dung O. Mahrenholtz: Some theoretical and numerical aspects of large deformations in three-dimensional metal forming. Proc. NUMIFORM '89, Fort Collins, USA, 1989, 523/527.
2. Appeltauer, J., N.L. Dung, O. Mahrenholtz: Numerische Untersuchung der Rißbildung infolge plastischen Fließens. ZAMM 70 (1990), T312/T314.
3. Atkins, A.G., Y.-W. Mai: Elastic and Plastic Fracture Chichester: Ellis Horwood, 1988.
4. Brown, L.M., J.D. Embury: The initiation and growth of voids at second phase particles. Proc. 3rd Int. Conf. on Strength of Metals and Alloys, Cambridge, U.K., 1973, 164/169.
5. Clift, S.E.: Identification of defect locations in forged products using the finite element method. PhD-Thesis, University of Birmingham, U.K., 1986.