1) R. Z. Valiev, R. K. Islamgaliev and I. V. Alexandrov: Prog. in Mater. Sci. 45 (2000) 103–189.
2) Investigations and Applications of Severe Plastic Deformation, ed. by T. C. Lowe and R. Z. Valiev (NATO Science Series, v.3/80, Kluwer Publishers, 2000) 394p.
3) V. M. Segal: Mater. Sci. Eng. A197 (1995) 157–164.
4) V. M. Segal: Mater. Sci. Eng. A271 (1999) 322–333.
5) V. M. Segal, K. T. Hartwig and R. E. Goforth: Mater. Sci. Eng. A224 (1997) 107–115.