1. 1. (1980) Welding handbook. Vol. 3: Flash welding. 7th Ed., AWS, 60-65.
2. 2. Kuchuk-Yatsenko, S.I., Lebedev, V.K. (1969) Continuous flash-butt welding. USSR author's cert. 226745, Int. Cl B23K 11/04. Pat. GB11623073, Great Britain; Pat. FR1517114, France; Pat. SE322003, Switzerland; Pat. IT796912, Italy.
3. 3. Paton, B.E., Lebedev, V.K. (1969) Electric equipment for resistance welding. Moscow, Mashinostroenie, pp. 40-68 [in Russian].
4. 4. Kuchuk-Yatsenko, S.I., Krivenko, V.G., Bogorsky, M.V. (1974) Method of control of flash-butt welding process. USSR author's cert. 542604, Int. Cl. B23K 11 [in Russian].
5. 5. Paton, B.E., Sakharnov, V.A., Lebedev, V.K., Kuchuk-Yatsenko, S.I. (1967) Machine for flash-butt welding. USSR author's cert. 201561, Int. Cl. B23K 11, Pat. US3349216, USA; Pat. GB1056812, Great Britain; Pat. FR1384943, France; Pat. DE1465942, FRG; Pat. F149917, Finland.