1. V. S. Kraposhin, The Results of Science and Technology. Metallurgy and Heat Treatment [in Russian], Vol. 21, Vsesoyuz. Inst. Nauch. i Tekh. Inf. (1987), pp. 144?206.
2. A. I. Veinik, I. L. Pobol', and A. A. Shipko, The Use of Progressive Methods of Electron Beam Hardening of Machine Parts and Tools: Review Information [in Russian], Belorus. Nauch.-issled. Inst. Nauch. Tekh. Inf., Minsk (1988).
3. O. K. Nazarenko, A. A. Kaidalov, S. N. Kovbasenko, et al., Electron-Beam Welding [in Russian], Naukova Dumka, Kiev (1987).
4. B. G. Ushakov, The Scientific Works of Moscow Power Institute [in Russian], No. 68, (1985) pp. 47?53.
5. I. Artinger and M. Korakh, Kuzn.-shtamp. Proizvod., No. 9, 16?19 (1986).