References
- Sofronov , A A . 1983 . ‘Introduction of modern welding processes into production of important components of gas pumping systems’ . Svar Proiz , : 23 (10)
- Nikolaev , G A . 1962 . ‘Welded structures.’ , Moscow : Publ Mashgiz .
- 1974 . ‘A welding dictionary and handbook’ , Kiev : Publ Naukova dumka .