AMARAL, A. G. B.; BITTENCOURT, M. S. Q. Stress analysis with ultrasonic in pipe welded by electric resistance. Instituto de Engenharia Nuclear: Progress Report, [S. l.], n. 1, p. 77, 2015. Disponível em: https://revistas.ien.gov.br/index.php/ienprogressreport/article/view/63. Acesso em: 12 maio. 2024.