1. 1) K. W. Andrews: JISI, 203 (1965), 721–727.
2. 2) L. A. Carapella: Metal Prog., 46 (1944), 108–108.
3. 3) R. A. Grange and H. M. Stewart: Trans. AIMME, 167 (1946), 467–494.
4. 4) C. Y. Kung and J. J. Rayment: Hardenability concepts with applications to steel, TMS-AIME, Warrendale, PA, (1978), 229–248.
5. 5) A. E. Nehrenberg: Trans. AIME, 167 (1946), 494–501.