1. R.Z. Valiev, I.V. Alexandrov, Nanostructured Materials Fabricated by Severe Plastic Deformation (Moscow, Logos, 2000) in the Russian Language.
2. K. Nakashima, Z. Horita, M. Nemoto, T.G. Langdon, Acta Mater. Vol. 46(1998), No. 5, p.1589.
3. L.M. Voronova, Thermostability of submicrostructure of iron and constructional steel performed by severe plastic deformation. Dissertation, Ekaterinburg, 2003, in the Russian Language.
4. H.S. Kim, W.S. Ryu, M. Janecek, S. Ch. Baik, Yu. Estrin, Advanced Engineering Materials, 7, No. 1-2, 2005, p.43.
5. B.Q. Han, E.J. Lavernia, F.A. Mohamed, , Metall. Mater. Trans. 35A, April, 2004, p.1343.