1. D.K. Matlock, J.G. Speer, E. De Moor, and P.J. Gibbs: JESTECH, 2012, vol. 15, pp. 1–12.
2. J. Sun, and H. Yu: Mater. Sci. Eng. A, 2013, vol. 586, pp. 100–1107.
3. K. Andrews: J. Iron Steel Inst., 1965, vol. 203, pp. 721–27.
4. G.T. Eldis: Hardenability Concepts Appl. Steel, 1977, pp. 126–57.
5. R. Range, and H. Stewart: Trans. Am. Inst. Mining Metall. Eng., 1946, vol. 167, pp. 467–501.