1. P. Fallböhmer, Advanced Cutting Tools for the Finishing of Dies and Molds, VDI-Verlag GmbH, ISBN 3-18-349802-2, Düsseldorf, (1998).
2. R.A. Mesquita, C.A. Barbosa, Development of improved machinability steel and precipitation hardening steels for plastic moulds. Tecnol. Metal. Mater., São Paulo, Brazil, (2005), vol. 1, N. 4 , pp.11-15.
3. Information on http://www.plastico.com.br/revista/pm374/ tecnologicas4.html.
4. F.T. Gerson, Fresh approaches to mould steel selection. Technical Series n.10.062, Nickel Development Institute - NiDI, Canada, (1991), pp.1-5.
5. A.M. Zanatta, J.O. Gomes, J.D. Bressan, C.A. Barbosa, Influence of hard and soft inclusions on the machinability and polishability of VP100 mold steel. Advanced Materials Research, (2011), vol. 223 pp.464-472.