Pogrebnjak, A.D., Ponomarev, A.G., Kaverin, M.V., Kolesnikov, D.A., Beresnev, V.M., Komarov, F. and Mel’nik, S.S. 2013. The formation of superhard coatings = 48 GPa in Ti-Hf-N (Fe) and analysis of their structure and properties. International Conference on Plasma Surface Engineering. 2, 13 (Mar. 2013), 475–478. DOI:https://doi.org/10.3384/wcc2.475-478.