References
- Fainberg , LI . 1999 . Evaluation of the electromagnetic forces acting on the arc in multi-arc welding . Avtomaticheskaya Svarka , : 25 – 9 .
- Nies , H , Keville , B and Schlatter , B . 1996 . Welding large diameter pipes with submerged arc welding processes . Oerlikon-Schweissmit , : 4 – 13 .