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Czesław Janusz Jermak
Poznan University of Technology, Institute of Mechanical Technology, Division of Metrology and Measurement Systems, ul. Piotrowo 3, 60-965 Poznań, Poland
Mirosław Rucki
Poznan University of Technology, Institute of Mechanical Technology, Division of Metrology and Measurement Systems, ul. Piotrowo 3, 60-965 Poznań, Poland