1. Analytical representation of hardenability data for steels
2. R. E. PETERSON: ‘Stress concentration factors’, 54; 1974, New York, Wiley.
3. Bending fatigue strength of carburising steel SS 2506
4. J. ZHANG, Z. FENG, and z. Hu: ‘Microstructure and mechanical behaviour of materials’, Vol. 2, 1053-1061; 1985, Warley, West Midlands, Engineering Materials Advisory Service (EMAS).