1. C. G. Sochön, A. Sinatora, Pergamon, v. 22, n. 4, (1998), pp.437-448.
2. A. Sinatora, M. Pohl, E. U. Waldherr, Pergamon, v. 32, n. 6, (1995), pp.857-861.
3. S. Atamert, J. Stekly, Surface Engineering, v. 9, n. 3, (1993), pp.231-240.
4. J. Tong, Y. Zhou, T. Shen, Inter. Conf. On Wear of Mat, Denver, CO, USA, April 8-14, (1989).
5. H. S. Avery, Materilas for the Mining Industry, Proc. Conf, 43, (1974).