1. R. WILSON, “Metallurgy and Heat Treatment of Tool Steels” (McGraw-Hill, 1975).
2. F. W. TAYLOR,Trans. ASME 28 (1970).
3. T. MUKHERJI, ISI Monograph no.126 (1970) p. 80.
4. F. HEISTERKAMP and S. R. KEOWN, in Proceedings of the 109th AIME Annual Meeting, Las Vegas, Nevada, 26–28 February, 1980 (Metal Society of AIME, 1980) p. 103.
5. T. CESCON, in the Proceedings of the 39th ABM Meeting (1983) p. 141.