1. Metals Handbook, 9th Edition, Vol. 14, ASM, 1988.
2. T. Welo, S. Abtahi, I. Skauvik, An experimental and numerical investigation of the thermo-mechanical conditions on the bearing surface of extrusion dies, in: Proceedings of the Extrusion Technology Seminar 1996 II, Chicago, IL, 1996, p. 101.
3. L. Jonsson, L.Å. Norström, O. Sandberg, A new precipitation hardening steel for aluminium extrusion dies, in: Proceedings of the Extrusion Technology Seminar 1992, Chicago, IL, 1992.
4. Metals Handbook, 9th Edition, Vol. 4, ASM, 1981.
5. Tribological simulation of aluminium hot extrusion;Björk;Wear,1999