MATZ, V.; KREIDL, M.; ŠMÍD, R. Signal Separation in Ultrasonic Non-Destructive Testing. Acta Polytechnica, [S. l.], v. 47, n. 6, 2007. DOI: 10.14311/992. Disponível em: https://ojst.is.cvut.cz/ojs/index.php/ap/article/view/992.. Acesso em: 20 may. 2025.