1. R. Z. Valiev and I. V. Aleksandrov, Bulk Nanostructured Metallic Materials: Formation, Structure and Properties (Akademkniga, Moscow, 2007) [in Russian].
2. R. Z. Valiev and I. V. Aleksandrov, Nanostruñtured Materials Produced by Severe Plastic Deformation (Logos, Moscow, 2000) [in Russian].
3. N. I. Noskova and R. R. Mulyukov, Submicrocrystalline and Nanocrystalline Metals and Alloys (Ural. Otd. Ross. Akad. Nauk, Ekaterinburg, 2003) [in Russian].
4. R. A. Andrievskii and A. M. Glezer, “Size Effects in Nanocrystalline Materials: II. Mechanical and Physical Properties,” Phys. Met. Metallogr. 89, 83–104 (2000).
5. R. A. Andrievskii and A. M. Glezer, “Strength of Nanostructures,” Phys.-Usp. 52, 315–334 (2009).