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3. Waveform controlled technology power wave AC/DC submerged arc, http://www.lincolnelectric.com/assets/en_US/Products/literature/NX230.pdf . Accessed 10 July 2012
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5. A. Pilipenko, “Computer Simulation of Residual Stress and Distortion of Thick Plates in Multi-Electrode Submerged Arc Welding and Their Mitigation Techniques,” Ph.D. Thesis, Norwegian University of Science and Technology, 2001