1. 1. Kajdalov, A.A., Nazarenko, O.K. (1973) Some problems of theory of electron beam welding. Elektron. Obrab. Materialov, 3, 9-13 [in Russian].
2. 2. Shilov, G.A., Akopyants, K.S., Kasatkin, O.G. (1983) Influence of frequency and diameter of electron beam circular scan on metal penetration in EBW. Avtomatich. Svarka, 8, 25-28 [in Russian].
3. 3. Ryzhkov, F.N., Bashkatov, A.V., Zakomoldin, A,F. et al. (1973) Welding of bronze Br.Kh0.8 and steel EI811 with oscillating electron beam. Ibid., 5, 56-58 [in Russian].
4. 4. Johnson, L.D. (1970) Some observation on the electron-beam welding of copper. Weld. J., 49, 2, 55-60.
5. 5. Anoshin, V.A., Ilyushenko, V.M., Bondarenko, A.N. et al. (2014) Integrated evaluation of effect of main impurities on weldability of copper. The Paton Welding J., 11, 24-27.