1. G. Roberts, G. Krauss, and R. Kennedy: Tool Steels, 5th ed., ASM INTERNATIONAL, Materials Park, OH, 1998, pp. 220–21.
2. W.M. Garrison, Jr.: Mater. Sci. Technol., 1987, vol. 3, pp. 256–59.
3. O. Sandberg, B. Klarenfjord, and H. Lindow: Proc. 5th Int. Conf. on Tooling, Leoben, Austria, F. Jeglitsch, R. Ebner, and H. Leitner, eds., Institut für Metallkunde und Werkstoffprüfung, Montanuniversität Leoben, Leoben, Austria, 1999, pp. 601–10.
4. K.D. Fuchs: Proc. 6th Int. Conf. on Tooling, Karlstad, Sweden, J. Bergström, G. Frederiksson, M. Johansson, O. Kotik, and F. Thuvander, eds., Karlstad University, Karlstad, Sweden, 2002, pp. 15–22.
5. R.A. Mesquita, L.C. França, and C.A. Barbosa: Proc. 57th Annual Congr. of the Brazilian Metallurgy and Materials Association (ABM), São Paulo, SP, Associação Brasileira de Metalurgia, Materiais e Mineração, ABM, São Paulo, Brazil, 2002, pp. 444–43 (in Portuguese).