1. L.E. Toth, Transition Metal Carbides and Nitrides (Academic, New York, 1971)
2. E.K. Storms, The Refractory Carbides (Academic Press, New York, 1967)
3. W. Lengauer, Transition metal carbides, nitrides and carbonitrides, in Handbook of Ceramic Hard Materials, vol. 1, ed. by R. Riedel (Wiley-VCH, Weinheim, 2000)
4. K. Polychronopoulou, J. Lee, C. Tsotsos, N.G. Demas, R.L. Meschewski, C. Rebholz, A.A. Polycarpou, Tribol. Lett. 44, 213 (2011)
5. D. Ferro, J.V. Rau, V.R. Albertini, A. Generosi, R. Teghil, S.M. Barinov, Surf. Coat. Technol. 202, 1455 (2008)