1. A. THOMAS: in 'Tribology in iron and steel works'. 135–141; 1970, London, The Iron and Steel Institute.
2. J. A. REYNOLDS: in 'Tools and dies for industry'. I-8: 1977, London, The Metals Society.
3. P. A BLACKMORE, A. SEGAL, A. J. BAKER. and P R. BEELEY: in 'Solidification and casting of metals', 533–538; 1979, London, The Metals Society.
4. P. R. BEELEY, A J. BAKER. P. A. BLACKMORE. and A. SEGAL: in 'Solidification technology in the foundry and casthouse', 398–403, 1983. London, The Metals Society.
5. R. WILSON: 'Metallurgy and heat treatment of tool steels', 195–2015; 1975. Maidenhead, McGraw-Hill.