1. Segal VM, Reznikov VI, Drobyshevskiy AE, Kopylov VI (1981) Russ Metall 1:99
2. Smirnova NA, Levit VI, Pilyugin VI, Kuznetsov RI, Davydova LS, Sazonova VA (1986) Fiz Metal Metalloved 61:170
3. Horita Z, Smith DJ, Furukawa M, Nemoto M, Valiev RZ, Langdon TG (1996) J Mater Res 11:1880
4. Iwahashi Y, Horita Z, Nemoto M, Langdon TG (1998) Metall Mater Trans 29A:2503
5. Stolyarov V, Valiev RZ (2002) In: Zhu YT, Langdon TG, Mishra RS, Semiatin SL, Saran MJ, Lowe TC (eds) Ultrafine grained materials II. The Minerals, Metals and Materials Society, Warrendale, PA, p 209