References
- Rykalin , N.N. , ‘Thermal processes in resistance welding’. Academy of Sciences of the USSR, Moscow 1959 .
- Roden , W.A. 1968 . Evaluation of resistance welding in process monitors’ . Welding Journal , 11 : 515 – 521 .
- Smirnov , V.V. 'Equipment for resistance welding. A guide'.Energoatomizdat, St Petersburg , 2000 .