Application of ultrasonic testing for the quantitative assessment of wood element degradation. Civil Engineering Science - Zeszyty Naukowe Politechniki Częstochowskiej. Budownictwo, [S. l.], v. 181, n. 31, p. 52–57, 2026. Disponível em: https://journals.pcz.pl/znb/article/view/600. Acesso em: 15 cze. 2026.