References
- Rykalin , NN . 1951 . Calculations of thermal processes in welding , Moscow : Mashgiz .
- Karkhin , VA . 1990 . Thermal fundamentals of welding , Leningrad : Leningrad State Technical University .
- Sosnin , NA . 2008 . Plasma technologies, a handbook for engineers , St Peterburg : the Publishing House of the Polytechnical University .