MACHAŁA, P.; DARSZNIK, S.; MIERZWA, J.; UCHROŃSKI, P. Calibration reflectors in ultrasonic testing of railway axles. Welding Technology Review, [S. l.], v. 89, n. 11, 2017. DOI: 10.26628/wtr.v89i11.829. Disponível em: https://pspaw.pl/pspaw/article/view/829. Acesso em: 22 dec. 2024.