1. V. A. Nikolaev, I. N. Fridlyander, and Yu. P. Arbuzov, Weldable Aluminum Alloys, Metallurgiya, Moscow (1990).
2. M. P. Orlov, N. V. Shiganov, E. N. Kuznetsov, et al., “Plasma-arc welding of aluminum alloys without forming blocks,” Svar. Proizv., No. 11, 23–24 (1975).
3. H. G. Martinez, R. E. Marques, J. C. Mecture, and A. C. Nunes, “Front side keyhole detection in aluminum alloys,” Weld. J., No. 5, 49–52 (1992).
4. Yu. D. Shchitsyn, V. Yu. Shchitsyn, H. Harold, and W. Weingart, “Plasma welding of aluminum alloys,” Svar. Proizv., No. 5, 36–42 (2003).
5. E. M. Esibyan, Plasma-Arc Unit, Tekhnika, Kiev (1971).