FELIUS, H. Non-invasive inspection of heat exchanger tubes. Welding Technology Review, [S. l.], v. 85, n. 12, 2013. DOI: 10.26628/wtr.v85i12.148. Disponível em: https://pspaw.pl/pspaw/article/view/148. Acesso em: 30 apr. 2024.