1. G. Krauss, Steels: Processing, Structure, and Performance, ASM International, Cleveland, 2005
2. O. Asi, A.C. Can, J. Pineault, and M. Belassel, The Relationship Between Case Depth and Bending Fatigue Strength of Gas Carburized SAE 8620 Steel, Surf. Coat. Technol., 2007, 201(12), p 5979–5987
3. K. Kubota, Method for Vacuum Carburization. Patents EP0818555 B2 (2007)
4. Y.P. Usatyi, E.N. Marmer, S.G. Murovannaya, F.A. Palei, and L.I. Volkova, Vacuum Carburizing of Steel 18KhGT, Met. Sci. Heat Treat., 1997, 19(11), p 994–996
5. P. Kramer, An Investigation of Rolling-Sliding Contact Fatigue Damage of Carburized Gear Steels. M.S. Thesis, Colorado School of Mines, Golden, CO (2013)