1. E. G. Avvakumov, Mekhanicheskie metodi activatsii khimicheskikh protsessov (Mechanical methods for activation of chemical processes), Nauka, Novosibirsk, 1979, p. 251 (in Russian).
2. G. Heinicke, Tribochemistry, Akademie-Verlag, Berlin, 1984, p. 582.
3. V. S. Emel'yanov, A. I. Evstyukhin, Metallurgiya yadernogo goryuchego (Metallurgy of nuclear fuel). Atomizdat, Moskva, 1968, p. 483 (in Russian).
4. V. Mavrudiev, to be published.
5. JCPDS-Intern. Centre for Diffraction Data, No. 47. 1493, 1997.