1. V. S. Ivanova and G. E. Folmanis, Metallurg. Mashinostr., No. 1, 2 (2007).
2. A. V. Eletskii and B. M. Smirnov, Usp. Fiz. Nauk 165, 977 (1995) [Phys. Usp. 38, 935 (1995)].
3. M. A. Khodorkovskii, et al., Zh. Tekh. Fiz. 75(10), 51 (2005) [Tech. Phys. 50, 1301 (2005)].
4. V. Yu. Dolmatov, M. Yu. Veretennikova, V. A. Marchukov, and V. G. Sushchev, Fiz. Tverd. Tela (St. Petersburg) 46, 596 (2004) [Phys. Solid State 46, 611 (2004)].
5. R. K. Yafarov, Zh. Tekh. Fiz. 77(1), 79 (2007) [Tech. Phys. 52, 75 (2007)].