References
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- ‘Survey of in-process quality control systems for resistance welding.’ Doc. IIW III G-67-79
- Voler , A. 1986 . ‘Quality control in resistance spot welding.’ Bosch
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- Janota , M. ‘Qualitative approach to analysis of control variable course.’ Doc. IIW III G-63-78
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- Drabek , D . ‘A method of determining the phase shift between voltage and current of phase-controlled machines.’ Author's Cert. No. 239168
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