References
- Granovskii , V L . 1971 . ‘Electric current in gas. Stationary current’ , Moscow : Publ Nauka .
- Mandelberg , S L . 1975 . Avt Svarka , : 41 – 44 .
- Tikhodeev , G M . 1961 . ‘Electric properties of the electric welding arc’ , Moscow–Leningrad : Publ USSR Academy of Sciences .
- Engel’ , A and Steinbeck , M . 1936 . ‘Physics and technology of electric discharge in gases.’ , Vol. 2 , Moscow : Publ ONTI NKTP .
- Kovalev , I M . 1972 . Svar Proiz , : 1 – 3 .
- Leskov , G S . 1970 . ‘The electric welding arc.’ , Moscow : Pub Mashinostroenie .