1. K. I. Portnoi, B. R. Gorobets, I. V. Romanovich, and B. N. Babich, Poroshkovaya Met., No. 1, 96 (1974).
2. B. N. Babich, L. S. Bushnev, Yu. R. Kolobov, and K. I. Portnoi, Izv. Vyssh. Uchebn. Zaved. SSSR, Fiz., No. 11, 154 (1974).
3. K. I. Portnoi and B. N. Babich, Dispersion-Hardened Materials [in Russian], Izd. Metallurgiya, Moscow (1974), p. 9.
4. J. J. Petrovic and L. J. Ebert, Metallurgical Trans.,3, No. 5, 1123 (1972).
5. M. Heimendahl and G. Thomas, Trans. AIME,230, No. 7, 1520 (1964).