References
- Ol'shanskii , N A , ed. 1978 . ‘Welding and engineering, a handbook, Vol. 1.’ , Moscow : Publ Mashinostroenie .
- Krivosheya , V. E. 1978 . ‘Mathematical methods of calculating the conditions of automatic submerged-arc butt welding with edge preparation.’ . Avt Svarka , : 5 – 8 .