1. Powder-Metallurgy Tool Steels
2. P. HELLMAN, H. LARKER, J. B. PFEFFER, and I. STROMBLAD: in 'Modern developments in powder metallurgy', Vol.4, (ed. H. H. Hauser), 573–582; 1971, New York, Plenum Press.
3. 'The matrix steels' 1979, Latrobe, Pa, Teledyne-Vasco.
4. F. A. KIRK, H. C. CHILD, E. M. LOWE, and T. J. WILKINS: in 'Materials for metal cutting'. 67–79; 1970, London. The Iron and Steel Institute.