1. E. Erisir, B. Zeislmair, C. Keul, F. Gerdemann, W. Bleck, in: 19th International Forging Congress, Chicago, 2008, pp. 177–188.
2. The Physical Metallurgy of Microalloyed Steels;Gladman,1997
3. Fundamentals and Applications of Microalloying Forging Steels;Cristinacce,1996